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Kelud volcano
Stratovolcano 1731 m (5,679 ft)
East Java, Indonesia, -7.93°S / 112.31°E
Current status: normal or dormant (1 out of 5)
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Kelud volcano eruptions:
1500(?), 1548, 1586 ((sub-)Plinian eruption?), 1641 (sub-Plininan eruption?), 1716, 1752, 1756(?), 1771, 1776, 1785, 1811, 1825, 1826, 1835, 1848, 1849(?), 1864, 1901, 1919, 1920, 1951, 1966, 1967, 1990, Oct-Nov 2007, 13 Feb 2014
Typical eruption style:
Explosive. Lava domes, pyroclastic flows. Presence of extensive crater lake at low elevation, generating destructive lahars.
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Volcanoes of Java (17-days walking and trekking tour on Java)

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Kelud volcano news

Kelut volcano (East Java, Indonesia): eruption update - 4 fatalities, new size estimates

Saturday Feb 15, 2014 13:42 PM | BY: T

Ash emissions from Kelut yesterday (photo taken from Blitar)
Ash emissions from Kelut yesterday (photo taken from Blitar)
Traces of recorded infrasound waves pointing back to Kelut (CTBTO, facebook.com/CTBTO)
Traces of recorded infrasound waves pointing back to Kelut (CTBTO, facebook.com/CTBTO)
Ash emissions from Kelut yesterday (photo: @hilmi_dzi / Twitter)
Ash emissions from Kelut yesterday (photo: @hilmi_dzi / Twitter)
Additional details and new estimates about the recent explosion are emerging. Unfortunately, a 4th fatality caused by the eruption has now been confirmed by BNPB. All victims were within 7 km of the volcano. More than 100,000 people have been evacuated.
Fast rise of magma?
One of the most remarkable aspects of the eruption was how quickly it built up, suggesting a very fast rise of magma occurred in the hours before the explosion. VSI mentioned that there were only 2 hours between the appearance of shallow earthquakes (the typical immediate precursors) and the onset of the eruption itself. With such little warning time, it was difficult to implement an effective evacuation, but still, one should recognize that Indonesian authorities have done a marvelous job. Still, it is a small wonder that there were not many more fatalities. Most of this is to be attributed to the fact, that the eruption seems not to have produced any or at least no larger pyroclastic flows (which in itself is also a small wonder).

New estimates of the size of the eruption
The latest estimates of the erupted tephra volume are in the range of 120-140 million m3, which puts the explosion into the subplinian category with a low 4 on the Volcanic Explosivity Index scale (VEI). The plume seems to have reached up to 20 km altitude, analysis of satellite data suggest. These values put the eruption to be the largest in recent years, since the 2010 eruption of Puyehue-Cordon Caulle in Chile.
The explosion produced also one of the largest-ever recorded volcano-related infrasound waves. The pressure waves were picked up by stations all over the world, the furthest one being IS53 in Fairbanks, Alaska at >11.000 km or >6.800 mls, and the calculated traces point all into the direction of Kelut.
Previous news
The ash plume of Kelut over the Indian Ocean (NASA earth observatory)
Friday, Feb 14, 2014
Ash from the eruption is still drifting over the eastern Indian Ocean. More than 100,000 people have reportedly evacuated areas close to the volcano. Heavy ash fall occurred in vast areas of Java. A preliminary judgement of the erupted ash suggests that the explosion was a magmatic event, i.e. triggered by a new bash of fresh magma that seems to have risen very quickly to the surface: ... [more]
The eruption of Kelut last night (image: pic.twitter.com/ypy7kx9615 / @hilmi_dzi)
Friday, Feb 14, 2014
BNPB (Civil protection) confirmed 3 fatalities (indirectly or directly) caused by the eruption: two as result of breathing difficulties caused by the ash, one as a road accident during evacuation. All of the victims were in Pandasari village less than 7 km from the volcano where 20 cm of ash has fallen. ... [more]
The eruption column with intense volcanic lightning (@soranibrahim7, pic.twitter.com/11kGP8V0k4)
Friday, Feb 14, 2014
The ash plume from last night's major eruption (possibly sub-plinian or even plinian in size) of Kelut is drifting rapidly to the west above the Indian Ocean. It is estimated to be as high as 55,000 ft (16 km) and extends several hundred kilometers in both N-S and W-E directions. ... [more]
The eruption column of Kelut with lightning (photo: @RagaRikardhanu/ Twitter)
Thursday, Feb 13, 2014
It seems that a large eruption started at the volcano at 23:29 local time today. VAAC Darwin reports an ash plume to 45,000 ft (15 km) altitude is drifting 50 nautical miles to the west of the volcano. The alert status was raised to the highest level. ... [more]
Seismic activity at Kelut volcano during the past weeks (VSI)
Tuesday, Feb 11, 2014
VSI raised the alert status to the second highest level 3 (out of 4), "Siaga" (meaning eruption warning). In its latest report, VSI informs that an ongoing slight deformation, suggesting magma intrusion, has been detected since September and that a strong increase in seismic activity started on 7 February. A seismic swarm occurred with hypocenters between 1.5-3.5 km depth beneath the summit area. ... [more]

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