ภูเขาไฟ ที่กำลังปะทุ !!!!!!!!!!!

ภูเขาไฟทอนการิโอของนิวซีแลนด์ปะทุเป็นครั้งแรกในรอบ 115 ปี

ภาพ! ความเสียหาย ภูเขาไฟปะทุที่นิวซีแลนด์
สำนักข่าวต่างประเทศรายงาน จากกรุงเวลลิงตัน ประเทศนิวซีแลนด์ว่าเกิดเหตุภูเขาไฟ ทอนการิโอ ของนิวซีแลนด์ ปะทุ เป็นครั้งแรกในรอบ 115 ปี เมื่อวันอังคารที่ผ่านมา
ทั้งนี้ส่งผลให้การปะทุของภูเขาไฟครั้งนี้ปล่อยพวยเถ้าสูง 20,000 ฟุตปกคลุมเหนือชั้นบรรยากาศ ปิดฟ้าในเกาะนอร์ธ ไอร์แลนด์ และเป็นอุปสรรคต่อเที่ยวบินพาณิชย์ภายในประเทศ ทางการต้องสั่งปิดทางหลวงหลายสายโดยรอบ
อย่างไรก็ตาม ยังไม่มีรายงานผู้ได้รับบาดเจ็บหรือเสียชีวิต ซึ่งทางสำนักงานป้องกันภัยพลเรือนและหน่วยงานที่เกี่ยวข้อง ได้เฝ้าระวังสถานการณ์อย่างใกล้ชิด และขอให้ประชาชนในพื้นที่คอยติดตาม พร้อมรับฟังข่าวสารจากทางการโดยตลอด
(Photo: /EPA/AP/AFP/Reuters)

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แท็ก : ภูเขาไฟ, ภูเขาไฟทอนการิโอ, ภูเขาไฟนิวซีแลนด์, ภูเขาไฟปะทุ

Source : ภาพ! ความเสียหาย ภูเขาไฟปะทุที่นิวซีแลนด์ | ข่าว ข่าวรายวัน ข่าววันนี้ ข่าวการเมือง

 

Volcano activity of August 12, 2012 – Iliamna, Mount Rainier, Nevado del Ruiz, Gakeras, Popocatepetl, Fuego, Mt. Tongariro, White Island, Sheveluch, Turrialba and Rincon de la Vieja

Last update: August 12, 2012 at 11:50 pm by By Richard Wilson and Armand Vervaeck

This (almost) daily post intends to follow up the activity changes of volcanoes all over the world.
This post is written by geologist Richard Wilson who specializes in Volcano seismicity and Armand Vervaeck. Please feel free to tell us about new or changed activity if we haven’t written about it. -​

August 12, 2012 volcano activity
Clusters of earthquakes occurred overnight at Iliamna (Alaska) and Mount Rainier (WA) volcanoes.
Nevado del Ruiz (Colombia) may be rousing from its recent sedate behaviour with some mild ash emission during the past 24 hours and bursts of volcano-tectonic earthquakes. (station OLLE)
Nearby Galeras volcano continues to experience explosions of gas and ash, but seismicity at the volcano is remarkably low. (station ANGV; the signal near the bottom of the record is volcanic tremor, the signal above in the record is a regional earthquake signal)
Tremor continues to be visible on seismograms at Popocatepetl volcano (Mexico), though eruptive activity at the volcano remains reduced. Seismic signals recorded today at Fuego volcano (Guatemala) imply eruptive activity continues there. (station FG3)
In New Zealand, seismicity is very low at newly active Tongariro volcano, while volcanic tremor continues at White Island volcano.
Satellite imagery shows enhanced SO2 output (w/ash?) from Popocatepetl (Mexico), Shiveluch (Kamchatka Peninsula), and Turrialba and perhaps Rincon De La Vieja (Coast Rica) volcanoes.

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Volcanic activity world-wide 13 Aug 2012: new activity at Tofua (Tonga Islands), Popocatépetl, Fuego, Santiaguito, Costa Rica, Nevado del Ruiz, Reventador, Tungurahua, Sakurajima, Tongariro, White Island

Monday Aug 13, 2012 17:58 PM | Age: 26 min
BY: T


Possibly volcanic SO2 plumes over Costa Rica on 11 Aug (NOAA)

Activity has decreased at White Island. Ash emissions have been lower than in the previous days. Gas measurements showed that all volcanic gases were at levels lower than the previous measurement on August 1.

Tongariro volcano has stayed calm with and GNS scientists think that the most likely scenario is that the 6 Aug eruption was a single event and will not be followed by new eruptions in the near to medium future.

A "new" volcano just entered the watch list:
Out in the Pacific, a pilot observed an ash cloud rising from Tofua volcano to 3,000 ft (ca. 1 km) in the Tonga Islands at 04:42 GMT, VAAC Wellington reports.

El Hierro volcano: A total of 5 earthquakes (between M1.3-2.4) at 10-19 km depth has occurred today so far. This is the highest number in many days.

Activity remains weak at Popocatépetl in Mexico. About 1 weak eruption per hour has been observed during the past day by CENAPRED. SO2 emissions remain high (which is typical for Popo during phases of activity).

An elevated SO2 plume was visible above Costa Rica's Central valley on NOAA's SO2 monitoring images. It could have been caused by stronger degassing activity of the volcanoes Poas or Turrialba, both of which have been showing increased activity in 2011-12, but seem to have calmed down in the past months. Another SO2 signal is visible about 100 km east of Rincon de la Vieja and could have originated there. The Costa Rican volcano observatory doesn't mention any unusual activity.

Santiaguito / Santa Maria (Guatemala): An explosion at 05:49 local tie ejected an 800 m high ash plume and caused ash fall at Finca la Florida and around San Marcos Palajunoj. Only few and weak rock avalanches were reported since yesterday.

For Fuego volcano, INSIVUMEH reports 8 weak explosions during the past day, generating ash columns of 200-500 m height.
The lava flow in direction of Taniluya canyon has further advances and is now 300 m long and generates constant rock avalanches. Avalanches, too, have been observed towards the "Ash" (Ceniza) canyon.

In Colombia, sporadic gas and ash emissions continue to occur at Galeras and tremor signals are sometimes visible on the seismograms.
Nevado del Ruiz (Colombia): Steam and ash emissions continue at Nevado del Ruiz at fluctuating intensity. This morning a fresh ash deposit was found at the volcano observatory.
The seimic recordings show tremor and a seismic swarm with 30 quakes since 22:27 local time last night, located NE of the Arenas crater between 3-5 km, in the same area as the previous swarm on 12 August.

Reventador volcano in Ecuador ejects a 1.5 km high steam plume, but IG mentions no explosions or ash.
Tungurahua volcano continues to emit a steam plume with small amounts of ash, and has occasional small to moderate explosions accompanied by gunshot sounds heard around the volcano.

Jumping to the far north, there is little new activity to be reported from volcanoes in Kamchatka, the Kuriles, Aleutians and in Alaska. It is rather surprising that this normally very area has stayed quite calm over the past week.

Satellite observations show again plumes at 7,000 ft (2.1 km) originating from Batu Tara (Sunda Islands, Indonesia).

Sakurajima volcano has had 2 weak - moderate explosions during the past 30 hours

 

August , 2012 volcano activity
Mount Tongariro volcano (New Zealand) showed some seismicity earlier today (see seismogram below). The activity can only be seen in Oturere and West Tongariro seismograms (close to the Te Maari craters). Below also one of the rara clear view images of Mt. Tongariro with a strongly steaming vent. N report from GNS science about the seismicity however. The Park service has announced that the trekking trails at Mount Tongariro would be reopened. A 3 km hazard and risk zone will remain in place for some time and might be further reduced once new information of the gas and ash composition is known.

According to INGEOMINAS, the Observatorio Vulcanológico and Sismológico de Popayán reported that during 8-14 August seismic activity at Sotará increased. The seismic network recorded 110 magnitude 0.2-1.6 events mainly located in an area 0.1-5 km NE of the peak, at depths of 2-6 km. Inflation was detected in the NE area, coincident with the zone of increased seismicity. Web-camera views showed no morphological changes. The Alert Level was raised to III (Yellow; “changes in the behavior of volcanic activity”), or the second lowest level. (Smithsonian Institute)
KVERT reported moderate seismic activity from Karymsky during 10-20 August. Satellite imagery showed a weak thermal anomaly on the volcano during 10-13, 15, and 18-20 August. The Aviation Color Code remained at Orange.
KVERT reported that during 10-18 August weak seismic activity was detected at Shiveluch. Observers noted gas-and-steam activity during 15-17 August; weather conditions prevented observations of the volcano on the other days. Satellite imagery showed a thermal anomaly on the lava dome during 10, 12-13, and 18-19 August. Seismic activity increased to moderate levels and hot avalanches were observed during 19-20 August. The Aviation Color Code remained at Orange.
Insivumeh reports 2 moderate explosions at Santiaguito (Santa Maria), Guatemala. The other Guatemala volcano, Fuego sends a white plume approx. 50 meter in the air and grumbles every 1 to 3 minutes. See also seismograms from both volcanoes.
Activity observed by satellites
VAAC reports still the same volcanoes which can be dangerous for aviation ; Sakurajima, Batu Tara and a very active Tungurahua
SO2 satellite imagery shows SO2 clouds at the following volcanoes : Etna, Kilauea and Nevado del Ruiz. Clouds of a number of other volcanoes are not defined enough to be sure.

A smoking Nevado del Ruiz yesterday - image courtesy Ingeominas Colombia

Interesting articles
Hawaii Volcanoes Lodge Company re-opens part of the historic hotel
Shuttered for the past two years, a historic hotel overlooking the Big Island of Hawaii’s dramatic Kilauea caldera has reopened for daytrippers and campers in popular Hawaii Volcanoes National Park.
The 32-room Volcano House, listed on the National Register of Historic Places, started out as a grass shack in 1824 and has housed such notable guests as Franklin D. Roosevelt and Mark Twain (who wrote, in 1866, that “the surprise of finding a good hotel at such an outlandish spot startled me, considerably more than the volcano did.”) $$$ Read more …


<STYLE type=text/css> #gallery-1 { margin: auto; } #gallery-1 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-1 img { border: 2px solid #cfcfcf; } #gallery-1 .gallery-caption { margin-left: 0; } </STYLE><!-- see gallery_shortcode() in wp-includes/media.php --><DL class=gallery-item><DT class=gallery-icon> <DD class=gallery-caption>A smoking Nevado del Ruiz yesterday – image courtesy Ingeominas Colombia </DD></DL><DL class=gallery-item><DT class=gallery-icon> </DT></DL><DL class=gallery-item><DT class=gallery-icon> </DT></DL>


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คนเราคือมนุษยทั้งหลายในโลกนี้ ส่วนมากก็เป็นคนประมาท ส่วนมากตกอยู่ในความประมาท ยิ่งชนชาวชมพูทวีปด้วยแล้ว ก็เป็นผู้มีความประมาทอย่างยิ่งทีเดียว คนในชมพูทวีปเป็นผู้ประมาท คือหมู่เราประเทศไทย หรือในภูมิภาคส่วนนี้คือเป็นชมพูทวีป ชมพูทวีปเป็นส่วนหนึ่งของโลก โลกเรานี้แบ่งส่วนออกเป็น 4 ส่วน หรือเรียกในทางธรรมดังที่ได้กล่าวมาแล้วข้างต้นว่าเป็นทวีป คนในทวีปอื่นอีก 3 ทวีปเขามีอายุแน่นอน ส่วนในทวีปเราเขาเรียกว่าชมพูทวีป และมีพระพุทธเจ้ามาตรัส เป็นพระสัมมาสัมพุทธเจ้า ในโลกนี้ก็มี พระสัมมาสัมพุทธเจ้ามาตรัสรู้ในชมพูทวีป ทำไมจึงเป็นอย่างนี้ คือคนในชมพูทวีป มีความประมาทมาก คือประมาทมากเป็นอย่างยิ่ง ทั้งมีอายุน้อย แล้วก็ยังเป็นผู้ตั้งอยู่ในความเป็นผู้ประมาท ถ้าจะกำหนดอายุของชาวชมพูทวีป นี้ท่านกำหนดว่า มีอายุเพียงแ่ค่ 75 ปี เท่านั้น แต่ก็ไม่แน่นอน กำหนดลงไปเป็นส่วนใหญ่ว่า คนในชมพูทวีปจะมีอายุเป็นกำหนด 75 ปี อายุขัยสิ้นอายุก็ประมาณ75 ปีเลยจากนั้นไป ก็เป็นคนมีอายุเหมือนกัน แต่เขาเรียกว่าเลยกำหนด เลยประมาณ ตามที่ได้กำหนดไว้ ในภูมิทั้ง3 หรือวัยทั้ง3 สำหรับท่านผู้รู้กำหนด วัยของมนุษย์ในชมพูทวีป ไว้เป็น 3 วัยคือปฐมวัย มัจฉิมวัย และปัจฉิมวัย ปฐมวัยคือวัยเเรก ท่านกำหนดไว้ 25 ปี วัยที่สองก็เท่ากัน วัยทีสามก็เท่ากัน จึงเป็น75 ปี ท่านกำหนดไว้เป็นอย่างนั้น ในชาวชมพูทวีปเรา มีอายุน้อยกว่าทวีปอื่นๆ ดังที่เคยได้กล่าวมาแล้วนั้น ทั้งนี้ความไม่แน่นอนก็ยังมีมาก ในสมัยปัจจุบัน และยิ่งในสมัยปัจจุบันนี้แล้ว จะคิดว่าในอายุของเรา ผ่านไปถึงอายุ 75 ปี มันก็ไม่แน่นอนเลย สมัยนี้คนหนุ่มตายมาก คือตายในอายุไม่ถึง มัจฉิมวัย เนื่องจากกาลเวลาๆและกรรมที่กระทำในชาติก่อนๆ ให้มาประจวบกันในเวลานี้ มักไม่แน่นอน คือจะทำให้อายุจะสั้น และโรคภัยไข้เจ็บ ก็มาก อุบัติเหตุก็มีมาก จะมาในวันใหนในอายุ เท่าใด เวลาใด ไม่อาจรู้ได้เลย จะเป็นหญิง จะเป็นชาย จะเป็นชาวบ้านหรือเป็นภิกษุสามเณร หรือเป็นพระราชา มหากษัตริย์ฺ ก็ไม่อาจจะรู้ได้ คือหมายความว่า ไม่รู้วันตายแม้ถึงอย่างนี้ มนุษย์เรา ก็มีความเห็นเข้าข้างตัว คิดว่ายังไม่ตาย นี้คือความประมาท ของมนุษย์เรานี้ อาศรมไผ่มรกต

 

Ash emissions, explosive activity from the summit and steaming from probably what is a new lava flow at the SW shore next to the forest (photo: 3 Sep).

source ; Anak Krakatau volcano news & eruption update (Indonesia > Sunda Strait) / 2 Feb - 4 Sep 2012

 

Pressure in Mount Fuji is now higher than last eruption, warn experts

By Liat Clark
<ABBR class="updated " title="Thu, 06 Sep 2012 15:03:00 +01:00">06 September 12</ABBR>



ญี่ปุ่น - ระดับความดันในถ้าแม็กม่าใต้ภูเขาไฟฟูจีเพิ่มเขิ้นแตะระดับ 1.6 ล้านปาสคาล สูงกว่าระดับปะทุปกติถึง 16 เท่า (การปะทุจะเกิดได้ที่ 1 แสนปาสคาล) ซึ่งล่าสุดที่มีการระเบิดของภูเขาไฟสูง 4,000 ลูกนี้ คือในปี ค.ศ. 1707 หรือกว่า 305 ปีมาแล้ว ล่าสุด นักวิทย์กำลังจับตาดูอย่างใกล้ชิด

The pressure in Mount Fuji's magma chamber is now higher than it was in 1707, the last time the nearly 4,000-metre-high Japanese volcano erupted, causing volcanologists to speculate that a disaster is imminent.
The new readings, taken by the National Research Institute for Earth Science and Disaster Prevention, reveal that the pressure is at 1.6 megapascals, nearly 16 times the 0.1 megapascals it takes to trigger an eruption.
This, lead volcanologist on the case Eisuke Fujita told Kyodo News, is "not a small figure".
Researchers have speculated for some time that the volcano, located on Honshu Island 100km southwest of Tokyo, is overdue an eruption. In 2000 and 2001 a series of low-frequency earthquakes were recorded beneath the volcano, leading to widespread predictions of an imminent blow. Since the March 2011 tsunami and the 6.4 magnitude earthquake that followed four days later, Japan has been on tenterhooks, and in May 2012 a professor from Ryukyu University warned that a massive eruption within three years would be likely because of several major factors: steam and gases are being emitted from the crater, water eruptions are occurring nearby, massive holes emitting hot natural gases are appearing in the vicinity and finally, the warning sign that pushed the professor to make the announcement, a 34km-long fault was found underneath the volcano. The fault, experts suggested, could indicate a total collapse of the mountainside if there is another significant shift, and it would probably cause a collapse in the event of an eruption, leading to huge mud and landslides.
The new readings prove that the localised tectonic shifts of 2011 have indeed put immense pressure on the magma chamber, but the National Research Institute for Earth Science and Disaster Prevention has qualified its warning by noting that pressure is just one contributory factor to an eruption. The 1707 eruption, however, was itself caused by a recent earthquake that amped up the pressure in its magma chamber.
"It's possible for Mount Fuji to erupt even several years after the March 2011 earthquake, therefore we need to be careful about the development," a representative said.
A 2004 government report originally estimated that an eruption would cost the country £19.6 billion. However, new studies are underway by Honshu Island's Shizuoka prefectural government. The study is focussing on the potential damage that would be caused by a series of simultaneous earthquakes in the Tokai, Tonankai and Nankai regions located along the Nankai Trough, where it is feared another earthquake will soon take place. The most recent models have revealed that, in the worst-case scenario, 323,000 people would die and the tremors could trigger an eruption at Mount Fuji.
Regions that would be affected, including Kanagawa, Yamanashi and Shizuoka, plan to hold a test run of an evacuation by 2014, with a meeting of local governments covering progress of the plans and of shelter preparations slated for April 2013

 

นิคารากัว- ภูเขาไฟซานคริสโตบัล(ความสูง 1,745 เมตร) ซึ่งตั้งอยู่ห่างจากกรุงมานากัวไปทางตะวันตกเฉียงเหนือราว 135 กิโลเมตร และเป็นภูเขาไฟที่ยังมีพลังมากที่สุดในนิการากัวเกิดปะทุขึ้นเมื่อวานนี้ พ่นเถ้าถ่านสูง 5 กิโลเมตร ทางการต้องอพยพประชาชนกว่า 3,000 คน ออกห่างจากเขตอันตราย (ภาพจาก Earth Changes and the Pole Shift)

 

เช้านี้ภูเขาไฟ Fuego volcano กัวเตมาลา ระเบิดอย่างรุนแรง

September 13, 2012 volcano activity
Fuego volcano, Guatemala makes 10,000 people to evacuate
The rising tremor we saw yesterday at Guatemalan volcanoes Fuego (station FG3) and Santa Maria (STG6) culminated in explosive outbursts at both overnight. Pulses of tremor, now interspersed with earthquakes affect nearby Pacaya volcano today.(station PCG)
Nearly 10,000 people living in communities near the volcano have been asked by the authorities to evacuate after that volcan Fuego increased his activity today. The evacuation was ordered by the authorities when a lava flow with a length of 600 meter traveled along the slopes.
The authorities have also asked the population to drive carefully as roads are covered with ash.
Picture below, the tremendous ash cloud from the erupting Fuego volcano, active since along time, but now with a major outburst! Volcanic ash rose 1500 meter above the crater. The volcano activity level increased further and continuous explosions could be heard. Fine ash has fallen in a couple of locations near the volcano.
Although the ash cloud can wel be seen going down the slopes of the volcano, insivumeh does not talk about a pyroclastic flow. More pictures of the volcano eruption.

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Image courtesy Insivumeh

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Guatemala volcano erupts, forcing 33,000 to evacuate homes

Guatemala volcano: At least 17 villages near the Volcan del Fuego, six miles from the colonial city of Antigua, are being evacuated. The eruption of the volcano could cause a disruption in airline flights in and out of Guatemala.


By Alberto Arce and Romina Ruiz-Goiriena, Associated Press / September 13, 2012
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Plumes of dark smoke rise from the Volcan de Fuego ( Volcano of Fire) as seen from Palin, south of Guatemala City, Thursday, Sept. 13, 2012. Officials are carrying out “a massive evacuation of thousands of people” in five communities.
(AP Photo/Moises Castillo)

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Guatemala City

A long-simmering volcano outside one of the Guatemala's most famous tourist attractions exploded into a series of powerful eruptions Thursday, hurling thick clouds of ash nearly two miles (three kilometers) high, spewing rivers of lava down its flanks and forcing the evacuation of more than 33,000 people from surrounding communities.Guatemala's head of emergency evacuations, Sergio Cabanas, said the evacuees were leaving some 17 villages around the Volcan del Fuego, which sits about six miles southwest (16 kilometers) from the colonial city of Antigua. The ash was blowing south and authorities said Antigua was not currently in danger, although they expected the eruption to last for at least 12 more hours.
The agency said the volcano spewed lava nearly 2,000 feet (600 meters) down slopes billowing with ash around Acatenango, a 12,346-foot-high (3,763-meter-high) volcano whose name translates as "Volcano of Fire."
RECOMMENDED: The world's most active volcanoes
"A paroxysm of an eruption is taking place, a great volcanic eruption, with strong explosions and columns of ash," said Gustavo Chicna, a volcanologist with the National Institute of Seismology, Vulcanology, Meteorology and Hydrology. He said the cinders spewing from the volcano were settling a half-inch thick in many places.
He said extremely hot gases were also rolling down the sides of the volcano, which was entirely wreathed in ash and smoke. The emergency agency warned that flights through the area could be affected.
There was a general orange alert, the second-highest level, but a red alert south and southeast of the mountain, where, Chicna said, "it's almost in total darkness."
Teresa Marroquin, disaster coordinator for the Guatemalan Red Cross, said the organization had set up 10 emergency shelters and was sending hygiene kits and water. "There are lots of respiratory problems and eye problems," she said.
RECOMMENDED: The world's most active volcanoes

 

หล่นไปอยู่หน้า 3 ซะละ..
เอากลับมา...หน้าแรก..ซะหน่อย​

 

Machin volcano (Colombia): magnitude 4.6 earthquake on 7 Oct triggers seismic swarm

Tuesday Oct 09, 2012 11:07 AM | Age: 2 hrs
BY: T


Seismic signal this morning October 9 (CIMA station, INGEOMINAS)

Seismic signal with the 2 mag 4.6 and 3.9 earthquakes on 7 Oct (CIMA station, INGEOMINAS)

On 7 October at 21:32 and 21:35 (local time) 2 volcano-tectonic quakes with local magnitude 4.6 and 3.9 occurred beneath Cerro Machin at 12 km depth to the southeast of the main dome.
These earthquakes were felt by residents near the volcano, in the municipalities of Cajamarca and Ibague (Tolima), and in some municipalities in the departments of Risaralda, Quindio and Caldas.
These two events triggered in an increase in seismic activity which continued for a day, but seems to have calmed down for now.

As earthquake-report mentioned, Machin has not had any historic eruptions, but there are records of large explosive events in the past. The volcano awakened from a long period of dormancy in the 1990s with numerous earthquake swarms similar to the current ones, but so far has not produced an eruption.
The past several years have been relatively quiet ones at the volcano, but in the past few months, seismicity has again increased. Most of this activity is in the same region 12-15 km below the volcano and could indicate magma intruding there. It will be interesting to follow this volcano's activity in the coming months or years.

 

Kilauea Volcano ,Big Island Hawaii

Kilauea Volcano

Big Island, Hawaii

19.425 N, 155.292 W,
summit elevation 1222 m
Shield volcano
Kilauea is one of the world's most active volcanoes. The volcano has been in constant eruption since 1983. A large collapse occurred at Kilauea volcano in November 2005. Lava flows destroyed three houses in Royal Gardens subdivision in February 2008.

Surface Lava flows, Kilauea Volcano - John Seach

Kilauea summit crater glow, June 2009

More volcano information..​

October 2012 Update
Two lava lake are present at Kilauea volcano, Hawaii. The east pit lava lake in Pu'u O'o crater occasionally flows across the floor of the south pit. The summit lava lake in Halemaumau crater occasionally overflows the inner ledge. The surface of the lava lake varies from 60m to 150 m deep inside the pit. On the east rift zone an active lava flow is located at the base of the pali in the abandoned Royal Gardens subdivision. The lava contines to advance towards the ocean. Sulphur dioxide emission was high at 1200 tonnes per day on 28th September 2012.

2011 Fissure Eruption
A new fissure eruption has begun at Kilauea volcano in Hawaii on 5th March 2011. The floor of Pu'u O'o crater collapsed over a period of 10 minutes. The event was preceded by a rapid deflation of Pu'u O'o and increased tremor along Kilauea's middle east rift zone near Makaopuhi and Napau craters. There was also deflation at the summit. New fissure opened between Pu'u O'o and Napau crater. The fissure ejected lava spatter 20 m high.

2009 Bench Collapse
A bench collapse occurred at Waikupanaha ocean entry, Kilauea Volcano, Hawaii, on the afternoon of 17th February 2009 (local time). Four explosions were recorded between 12:45 and 1:15 pm. The lava delta and nearby areas remain dangerous and should not be approached. Bench collapse can occur without warning, and result in explosions and ejection of hot lava, and local waves.
2008 Summit Eruption
An explosive eruption occurred on 19th March 2008, at Halema`uma`u Crater at the summit of Kilauea Volcano in Hawaii. This was the first explosive eruption in the summit crater since 1924. The explosion occurred at the location of the new gas vent which formed the week before. The eruption was probably phreatic, and created a crater 30 m in diameter. Debris was thrown as far as Crater Rim Drive near Halema`uma`u parking area 350 m away. Crater Rim Drive has been closed recently due to high level of gas emission in the area. The explosion occurred 3 miles from the town of Volcano with a population of 2200.
Kilauea Volcano Safety
Hiking at Kilauea volcano is a demanding activity, and is best pursued by those
who are physically fit, experienced in hiking, have suitable clothes, enough water, and be informed about the risks.
Deflation-inflation events at Kilauea volcano in Hawaii are caused by changes in a secondary magma chamber east of Halemaumau Crater at about 750 m below ground level. This secondary magma chamber produces episodic deformation events.

Kilauea Volcano Eruptions

1983-2012, 1982, 1980, 1979, 1977, 1975, 1969-74, 1967-68, 1965, 1963, 1962, 1961, 1960, 1959, 1954, 1952, 1934, 1931-1932, 1930, 1929, 1927, 1906-24, 1905-06, 1903-04, 1902-03, 1897, 1896, 1823-94, 1820, 1790, 1750.
Earlier eruptions are not accurately dated.

 

October 9 , 2012 volcano activity

Wind around anlow pressure system has subsided enough to reveal that very small earthquakes continue at Little Sitkin volcano (station LSSA).

Small earthquakes also continue at or near Mammoth Mountain (CA) today (station MMS).

Emissions of gases (mixed with some ash) have dropped dramatically to an average of once per six hours at Popocatepetl volcano (Mexico)

Another outburst occurred yesterday afternoon (after the previous report was issued) at Fuego volcano (Guatemala) (station FG3). Tremor and small volcanic earthquakes continue at nearby Pacaya volcano (station PCG).

What appears to be strong tremor is likely telemetry interference on today’s seismogram from San Miguel volcano (El Salvador). The other disturbances on the record are in fact volcanic earthquakes and weak tremor (station VSM).

Earthquakes (aftershocks?) large and small continue within the southwest “nest” near Machin volcano (Colombia) today (station CIMA). Small earthquakes and tremor also affect Nevado Del Ruiz and Galeras volcanoes (stations OLLZ and ANGV respectively).

In New Zealand, small earthquakes are visible on the seismogram recorded at Tongariro volcano, while White Island volcano continues to tremble with volcanic tremor.

Recent satellite imagery shows relatively weak SO2 emission from Turrialba volcano (Costa Rica), Sakurajima (Japan), and stronger (co-eruptive?) SO2 emission from Bagana and Manam volcanoes (New Guinea) and at Popocatepetl volcano (Mexico).

 

What's erupting? - List & map of volcanoes erupting at present

 

Kilauea Volcano lava lake reaches highest level ever

Kilauea Volcano lava lake reaches highest level ever

Posted on October 17, 2012 by The Extinction Protocol
<!-- .entry-meta -->October 18, 2012 – HAWAII – Kilauea Volcano has been putting on quite a show lately… as the lava lake within the Halemaumau Crater has reached its highest level since the summit eruption began in 2008. The lava lake at Kīlauea’s summit was only about 150 feet below the floor of Halemaʻumaʻu crater on Sunday — the highest it has reached, according to the scientists of the USGS Hawaiian Volcano Observatory. For the past several months, lava within the summit vent has been slowly rising. As of October 5, 2012, lava reached a level that covered the previous high-lava “bathtub” ring within the vent. It was around this time that the bangs and booms of the volcano began to be heard as far away as the Jaggar Museum Overlook in Hawai`i Volcanoes National Park, thrilling crowds day and night. This video shows the heat from the high lava lake level in the overlook vent, causing the walls of the vent above the lava surface to expand and fracture. Scientists say this is the source of the cracking and booming noises emanating from the vent in recent days. Here, we see small fragments of rock exploding from the wall and scattering onto the lake surface. The HVO says the rise in lava level within the vent is associated with a modest uplift and expansion of Kilauea’s summit area. The root cause for this expansion isn’t clear. Scientists don’t believe there’s an increase in magma supply from below. They do believe there could be a connection in the volcanic plumbing system between the summit magma reservoir and the active Pu`u `O`o eruptive vent on Kilauea’s east rift zone. On at least three occasions between March and September 2011, the level of the lava lake within the summit vent was unusually elevated. This condition caused increased pressure within the east rift plumbing system, resulting in notable eruptive outbreaks: the short-lived Kamoamoa fissure eruption just uprift of Pu`u `O`o and two subsequent events in which Pu`u `O`o was split open along its flanks. This time, however, it appears that the associated high summit pressure has not significantly transmitted down the volcano’s east rift. The lava level within Pu`u `O`o crater, while elevated, is not extraordinarily so. And even though lava is flowing through a tube near the base of the Pu`u `O`o cone, flows haven’t reached the ocean in nearly a year. According to the HVO, a steady decrease in Kilauea’s east rift zone gas emissions since August 2012 also suggests a decrease in magma flow between the summit and east rift zone. Scientists say one possible outcome of continued summit expansion and lava level rise could be an eventual outpouring of lava on the floor of Halema`uma`u Crater. Alternatively, the increased pressure might overcome the apparent constriction, resulting in an outbreak somewhere between the summit and Pu`u `O`o, akin to the March 2011 Kamoamoa fissure eruption. –Big Island News

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