Santiaguito volcano (Guatemala): increase of activity, lava flows and pyroclastic flows
Mon, 30 Jul 2012, 15:33 | BY: T
Seismic signal (Parador station) from the night 28-29 July (INSIVUMEH)
The block lava flows from the lava dome have a length of about 3 km in different directions, mainly in the southwest, south and southwest flanks. The fronts and steep sides of the flows generate many avalanches of blocks, which along with regular explosions from the dome cause strong seismic signals.
Starting early on 29 July (local time), some of the block avalanches turned into weak pyroclastic flows, and generated thick colums of fine ash rising up to 1500 meters above the crater and moving southwest towards the San Marcos and El Rosario Palajunoj regions at an approximate distance 15 kilometers.
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Links / Sources:
Links / Sources:
- BOLETIN VULCANOLOGICO ESPECIAL (INSIVUMEH)
Previous news
Fri, 27 Jul 2012, 08:48
Santa María / Santiaguito volcano (Guatemala) activity update: occasional weak ash explosions, lava flows inactive
The activity at Santiaguito has been decreasing in the past weeks. Ash explosions from the active lava dome are becoming less intense and frequent and INSIVUMEH reports that the blocky lava flows from the dome are currently calm. ... Read all
Wed, 25 Jul 2012, 06:00
Santa Maria volcano (Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 July-31 July 2012 (Continuing Activity)
INSIVUMEH reported that during 26-27 July an explosion from Santa María's Santiaguito lava-dome complex produced an ash plume that rose 400 m above Caliente dome. White gas plumes rose 200 m and drifted SW; incandescence from the crater was reflected in the plume. On 29 July pyroclastic flows descended the S flank and generated ash plumes that rose 1.5 km above the crater and drifted 15 km SW. ... Read all
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