Sabancaya volcano (Peru): no recent eruptions, seismic unrest continues

Mon, 27 May 2013, 06:03 | BY: T

The crater of Sabancaya volcano on 21 May 2013 (IGP)

Seismic swarm on 21 May (IGP)

Seismicity (number of quakes) during the past months (IGP)

The volcano has remained quiet, but is still showing signs of unrest. IGP scientists found evidence of eruptive activity (no fresh lava or pyroclastic deposits) inside the crater of of the volcano during a helicopter survey on 21 May. Only steaming and degassing were observed from the crater, that measures about 300-350 m in diameter and is 200 m deep.
2 major fumarolic areas are present in the N and SW sectors of the crater floor. Seismic activity is currently calm (as of 27 May), but occasional earthquake swarms still occur (such as on 21 May). Overall, a rise of volcano-tectonic quakes, likely related to new magma intrusions at depth, have been on the rise since early May.

All news about: Sabancaya volcano
Information about: Sabancaya volcano

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Report 22 May for Sabancaya (IGP)

Previous news

Thu, 16 May 2013, 09:07

Sabancaya volcano (Peru) activity update

Current seismic recording from Sabancaya volcano (BHZ station, IGP)

Seismic activity has calmed down a bit compared to the previous weeks. ... Read all

Tue, 14 May 2013, 15:17

Sabancaya volcano (Peru): seismic unrest and ground deformation

Ground deformation (deflation) at Sabancaya volcano measured by InSAR (IGP)

The possible ash emissions on 9 May have not been confirmed, but unrest in the form of increased earthquake activity and ground deformation has increased since early May, the Geophysical Institute of Peru (IGP) reported in its press release on 10 May. ... Read all

Sun, 12 May 2013, 16:35

Sabancaya volcano (Peru): possible ash emissions

Possible eruptions have started at the volcano. Pilots reported several volcanic ash plumes from the volcano in the past days although VAAC Buenos Aires could not identify ash on satellite imagery. ... Read all

Wed, 8 May 2013, 06:00

Sabancaya volcano (Peru) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 May-14 May 2013 (Continuing Activity)

On 10 May Instituto Geofísico de Perú (IGP) reported that results of an interferogram of Sabancaya provided by a collaborator at Cornell University showed that an area of deformation (subsidence of 7 cm centered at 6 km NE of the crater) was coincident with the main area of seismicity. Volcano-tectonic (VT) earthquakes continued to dominate the seismic signals, although long-period (LP) events continued to be detected. There was also an increase of hybrid events. ... Read all

Sun, 7 Apr 2013, 06:43

Sabancaya volcano (Peru): decreasing seismic unrest

Numbers of earthquakes at Sabancaya over the past weeks (IGP)

Seismic activity has decreased at the volcano, the latest press release of IGP shows. It seems less likely now that the volcano will produce an eruption soon,- as in many cases, an intrusion has happened at depth without (so far) breaching the surface (= erupting). ... Read all

Thu, 4 Apr 2013, 17:36

Sabancaya volcano (Peru): continuing earthquakes, degassing

IGP report #8 about Sabancaya (2 April 2013)

Volcanic earthquakes continue at high rate, and there is increased SO2 degassing, as the surface expression of fresh magma intruding at shallow depth. ... Read all

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Sabancaya volcano (Peru): no recent eruptions, seismic unrest continues

Previous news

Sabancaya volcano (Peru) activity update

Sabancaya volcano (Peru): seismic unrest and ground deformation

Sabancaya volcano (Peru): possible ash emissions

Sabancaya volcano (Peru) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 May-14 May 2013 (Continuing Activity)

Sabancaya volcano (Peru): decreasing seismic unrest

Sabancaya volcano (Peru): continuing earthquakes, degassing

Sabancaya volcano (Peru) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 April-9 April 2013 (Continuing Activity)

Sabancaya volcano (Peru) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 March-2 April 2013 (New Activity / Unrest)

Sabancaya volcano (Peru): 400-500 earthquakes per day, increased degassing

Sabancaya volcano (Peru): magnitude 4.7 earthquake

More on VolcanoDiscovery

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