After Rodger Wilson was obliged to discontinue his daily participation at this site, we have decided to start up an El Hierro type article. The newest additions will always be on top and if the article gets too long, we will cut off a part of it and archive it. This url will always be the one to follow and if you leave our page open in your browser, the page will refresh every 60 minutes automatically.
Please be a little patient with this new format.
This report is compiled out of many information sources.
Rodger wilson reports :
A M6.2 event last night which has triggered significant swarm seismicity at both Momotombo and Apoyaque volcanoes in Nicaragua.
Mount Kelud (Java, Indonesia) makes thousands of people to evacuate (February 14)
Mount Kelud erupted yesterday evening. Due to the cloud cover, no footage of the eruption itself is available but the result of the eruption can be clearly seen on the video below. The eruption sent volcanic ash covering an area 500 kilometres (310 mi) in diameter. The rain of ash covered a third of Java island from Malang to Yogyakarta in Central Java.
Mount Kelud is located in East Java, has a height of 1,730 meters, and erupted on Thursday (13/2) at 22:50 local time (UTC+7). The impact of the eruption was not only visible in nearby Kediri and Blitar, but also in other areas such as Kebumen, Sidoarjo, Surabaya, Mojokerto, Madiun, Yogyakarta, Sukoharjo, and Kudat.
3 airports (Juanda Surabaya, Adisumarno Solo and Yogyakarta Adisucipto) are closed due to the danger of ash in the engines. Volcanic ash in the airplane engines can cause engine failure and crashes)
Health experts are requesting the population residing around Mount Kelud to be aware of exposure to volcanic ash. Volcanic ash is very dangerous if inhaled by human beings and can cause also skin irritation. Additionally, inflammation of the eyes is also a possibility.
Rodger Wilson reports (February 13)
Rodger Wilson reports (February 12)
Small earthquakes (magnitudes generally < M2.0) continue unabated at Mammoth Mountain volcano (CA) (station MMP). There have been fewer and shorter duration pulses of spasmodic tremor during the past 24 hours. I have included a graphic showing the relationship between spasmodic tremor and deformation observed at the volcano during previous episodes of unrest.
There have been periodic very low frequency (<1 Hz) visible on spectrograms during this sequence that may represent episodes of deformation.
Also,…another pulse of seismicity at Yellowstone overnight (station YNR).
Neither of these sequences indicate forthcoming eruptive activity, but the activity at Mammoth is clearly volcanic in nature and scientifically interesting to watch. It is also the highest level of shallow seismicity to occur at the volcano since the late 1990′s.
Rodger Wilson reports (February 11)
Spasmodic tremor (fluid movement) has become more frequent during the past 24 hours at Mammoth Mountain volcano (CA) (station MMP). Dilatometers also show changes associated with the activity during the same period. Several pulse-like periods of extension across the volcano have occurred since the first of the month, associated with increases in seismic activity. Also very shallow earthquakes have appeared immediately west of the edifice overnight.
Another United States caldera (Yellowstone) is showing some signs of life over the past few days (station NRP). Careful all you eruption baiters!!! This activity is far from pre-eruptive levels!!!
Tremor at Chaparrastique (San Miguel) volcano (El Salvador) (station VSM) has continued to climb, periodically saturating (overloading) local seismometers overnight.
Eruptive activity at Tungurahua volcano (Ecuador) (station RETU) has de-volved into numerous discrete explosions now.
Rodger Wilson reports (February 10)
An earthquake swarm continues beneath Mammoth Mountain (CA) (station MRD) albeit at a reduced rate (still some short pulses of spasmodic tremor though).
SNET continues to observe rising seismic energy emanating from Chaparrastique (San Miguel) volcano (El Salvador) (station VSM). An earthquake swarm occurred amidst the continuous tremor resonating from the volcano beneath its North flank yesterday.
Explosive outbursts (including pyroclastic flows) continue at a slightly reduced rate at Tungurahua volcano (Ecuador) (station RETU).
Volcanic seismicity remains elevated at Ubinas volcano (Peru) as well.
Rodger Wilson reports (February 8)
Two relatively strong pulses of spasmodic tremor (fluid movement) occurred at Mammoth Mountain volcano (CA) (station MRD) early today. Seismic events appear to have further shallowed, to around 3 km now, versus the 5 km of previous days. Compared with the deformation recorded during the deep earthquake swarm at the volcano in October 2012, the current shallow activity is only producing weak uplift and extension. I also note a 1 Hz “noise” developing on spectrograms during the swarm activity over the past two days. Not sure what to make of it, but it’s real.
Nishinoshima volcano island, Japan (January 7)
The video link below is showing the new island volcano’s new crater. As you will be able to see also that the crater height (beautiful round shaped crater) is building up gradually. (via Annette Schörner)
Rodger Wilson reports (February 7)
There’s a shallow (~5km depth) earthquake swarm underway at Mammoth Mountain volcano, California (station MRD) (Do you think this might herald the arrival to near the surface of fluids involved with the October 2012 deep swarm beneath Mammoth?).
Eruptive activity is again intensifying at Tungurahua volcano (Ecuador) (station RETU) according to current spectrograms there (read from bottom to top).
Internal tremor is also (slowly) intensifying at Chapparastique (San Miguel) volcano (El Salvador) (station VSM).
Ubinas volcano (Peru) has also experienced numerous volcanic earthquakes which have now evolved into extended pulses of volcanic tremor at the volcano.
Tungurahua pyroclastic flow video (February 4)
The video below shows very well how a pyroclastic hot cloud descends from the volcano slopes and continues further and further. At the end the cloud arrived closer and closer to the video recording people
Tungurahua Update (February 2 @ 09:20 UTC)
- The Ecuadorian Civil Defense authority has called the Orange alert for a limited number of villages on the slopes of the volcano. Hundreds of people living in these villages have received the order to evacuate. Especially the extremely hot pyroclastic flows are a big risk for these communities.
The city of Banos, at the foot of the big volcano, has received instructions to prepare for a possible evacuation if the current situation would deteriorate.
A number of nice images from the eruptive activity can be found here
Big eruption on Tungurahua volcano, Ecuador (February 1 @ 23:12 UTC)
This is the webcam image we have copied a few moments ago . the image dates from less than an hour ago !
The volcano reactivated last Thursday. Today continues emission of ash is taking place. The ash is luckily carried away in the direction of the Oriente (lowlands to the east). The eruption can be seen from far away (ie Riobamba)
Check the live webcams here : IGEPN1 – IGEPN2 – IGEPN3 – IGEPN4 – IGEPN5 – IGEPN6
Returned villagers have to flee again on Sinabung volcano, 14 people killed (February 1)
An Indonesian volcano erupted on the island of Sumatra, leaving at least 14 people dead. Torrents of lava and pyroclastic flows gave neighboring villages an almost apocalyptic look.
2,460-meter-high Mount Sinabung erupted three times on Saturday, producing columns of ash about 2 kilometers tall and spreading hot rocks and ash over a 4.5 kilometer radius, said Sutopo Purwo Nugroho, spokesman for National Agency For Disaster Management (BNPB).
The RT report is very well written en has a lot of images showing what happened earlier today
OLDER ARCHIVED PARTS OF THIS REPORT :
2013 : July 8 – July 31
2013 : June 24 – July 7
2013 : June 8 – June 23
2013 : May 26 – June 7
2013 : June 8 – August 20
2013 : August 21 – October 27
2013 : October 28 – December 12
2013 : December 13 – January 30