Volcanos

Roundup of Global Volcanic Activity:

Etna (Sicily, Italy): Etna had no less than 3 paroxysms (particularly violent brief eruptive episodes) with lava fountains, lava flows and tall ash plumes from the New SE crater within the past 20 hours (so far).

This marks a change from the previous 9-month period characterized by intermittent mild to moderate, but often long-lasting periods of strombolian activity.

Shiveluch (Kamchatka): A small partial collapse of the active lava dome occurred last night at 23h45 (GMT) and produced a relatively small pyroclastic flow, followed by mud flows towards the ravine at the NE flank.

Ann ash plume rose to about 7000 m altitude, VAAC Tokyo reported.

Tolbachik (Kamchatka): The eruption continues with no changes reported by KVERT.

Grozny (Iturup Island): SVERT reported that a gas and ash plume rose to an altitude of about 3000 m on 16 February.

White Island (New Zealand): Elevated continuous tremor interspersed with earthquakes continue.

Popocatépetl (Central Mexico): A phase of increased degassing has been taken place today. This is likely caused by a surge in fresh magma supply.

Elevated activity is also visible on the recent seismogram.

Santa María / Santiaguito (Guatemala): Activity continues to be dominated by moderate explosions. Ash plumes rising up to about 700 m, causing light ash fall in nearby areas. The dome shows a 200 m high degassing plume and there is only relatively weak effusive activity at the lava flows on the dome's flanks

Fuego (Guatemala): The volcano is back to its typical mild, but continuous activity. INSIVUMEH reports 6 weak strombolian explosions with ash plumes rising about 400 m and incandescent bombs ejected to 100-150 m height above the crater.

Turrialba (Costa Rica): An SO2 plume from either Turrialba or Poás volcano is visible on today's satellite data, suggesting increased degassing activity at one of the volcanoes.

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Nearly three months after Tolbachik began erupting, lava continues to flow from the Kamchatkan volcano. Over time, the lava flows change location and shift across the landscape. In this image, infrared data is superimposed on a natural-color image to highlight active flows.

Volcanos

For the first time in 2012, Kīlauea lava flows have entered the Pacific Ocean, adding slivers of new land to Hawai'i Island.

Volcanos

Global volcanic activity:

Within the past few days, the lava lake at Kilauea volcano on Hawai'i within Halema‘uma‘u crater has risen to a record levels. 1 year ago the lake was 70m/230ft deep, 1 month ago it was 60m/200ft deep, 1 week ago it was 50m/165ft deep, and today it sits only 33m/110ft deep!

Elevated surface temperatures were detected at Cleveland volcano in Kamchatka on 19 and 22 October, this may be related to a period of lava dome growth at the volcano.

Lokon volcano in North Sulawesi erupted again on Saturday (20/10/2012) at around 01:33 am in the morning. According to a news article, ejecta were seen rising 400 m from the observatory and the eruption lasted for about 70 seconds.

Paluweh volcano (Rokatenda) volcano on Flores (Indonesia) is still showing some activity. A Modis satellite image taken on Monday, 22 October showed a gas plume containing ash drifting 80 KM west of the volcano.

Popocatépetl's activity in Mexico has decreased again. During 22-23 Oct, 39 small explosions, some with weak ash plumes, were recorded. Crater glow is still visible at night, and some small earthquakes continue under the volcano.

The lava flow from Fuego volcano is decreasing and now only 600 m long. As effusive activity weakens, more explosions seem to occur. INSIVUMEH counted 6 weak events during 22-23 Oct with ash plumes rising about 500 m.

Seismic activity remains elevated at Sotará volcano in Colombia and INGEOMINAS keeps a close watch on the volcano. A swarm on 17 Oct contained over 700 small quakes.

The seismic swarm in the Tjörnes Fracture Zone north off Iceland continues at reduced rate. According to the Icelandic Meteorological Office, there is enough stress to produce a magnitude 6.8 earthquake, but it is impossible to predict if and when such a quake might occur.

Volcanos

Anak Kraktoa volcano in Indonesia erupts. Lava flows extend the shoreline by 100 metres.