Thread by @GeoTenerife

The island of La Palma is on yellow alert for volcanic risk. Over 400 seismic events in 72 hours.

La Palma, en alerta amarilla por riesgo volcánico: registra cerca de 400 terremotos en las últimas 72 horas.

diariodeavisos.elespanol.com/2021/09/el-enj… via @diariodeavisos

The events have taken place in the municipality of Tazacorte and are also maintained throughout the area of 'Cumbre Vieja' that covers the municipalities of Mazo, Fuencaliente, Los Llanos de Aridane and El Paso, at depths ranging between 8 and 11 kilometers approximately.

The 'seismic swarm' began last weekend in La Palma + remains active with more than 120 small earthquakes recorded last night, some felt by the pop, eg one located in El Paso of magnitude 3.9 on the Richter Scale, according to data from the National Geographic Institute (IGN).

The Government of the Canary Islands has activated the Special Plan for Civil Protection + Attention to Emergencies due to Volcanic Risk (PEVOLCA) Cumbre Vieja (La Palma) and elevated the island to a 'yellow traffic light' due to volcanic risk.

Our @geointern students helped our colleagues at @involcan to monitor the island since 2012. According to @nemesiomperez, this is the largest of 10 seismic swarms in the last 5 years and closer to the surface, due to magmatic intrusion below the island.
facebook.com/10005762994282…

“80% of these episodes do not lead to an eruption” says @nemesiomperez of @involcan
diariodeavisos.elespanol.com/2021/09/un-enj… vía diariodeavisos

Our colleagues @involcan have issued a new update on ongoing event in #LaPalma, showing largest seismic event to date (yellow star) and colour coded for dates, (shows E-W migrationation) at depths of 9-12km. They urge local pop to follow advice of @PivpcGobCan

Emergency + security dept @112canarias says a YELLOW alert means:
“information to the pop, surveillance measures + monitoring of volcanic + seismic activity are intensified. At the current level, the activity does not imply increased risk for population”

www3.gobiernodecanarias.org/noticias?p=699…

#LaPalma update from @IGNSpain

➡️ Seismic activity migrating northwestward
➡️ Maximum accumulated deformation 6 cm
➡️ 20 shallow earthquakes
➡️ We continue to monitor the activity.

👉bit.ly/3kfLpkx

#IGNSpain

The @IGNSpain update on the ongoing seismic event in #LaPalma reports seismic activity continues to migrate slightly to the NW at depths of around 8 km, and 20 shallow earthquakes (1-3 km) have been recorded.

For their UPDATES on seismic activity see:

ign.es/resources/volc…

Latest @involcan update:
The seismic swarm continues at La Palma with almost 1000 localized earthquakes of low magnitude.
The figure shows hypocenters of this new swarm in variable color depending on the date of occurrence.
facebook.com/10005762994282…

The Canary Island 🌋🚦

GREEN = Normal

YELLOW = Be alert to the communications from civil protection authorities (volcanic activity + monitoring increase)

ORANGE = Follow instructions of the authorities (poss eruption)

RED evacuation of affected
pop (eruption)

#LaPalma

Stunning animation of current seismic activity in #LaPalma using @IGNSpain data.

https://twitter.com/x_y_es/status/1438281999651950595

There’s been an injection of 11
million cubic metres of magma in the system during the ongoing seismic swarm in #LaPalma, say our colleagues @involcan.
The figure represents horizontal (red arrows) and vertical (black arrows) displacement of the terrain.

facebook.com/10005762994282…

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Want to know more about the current seismic swarm shaking La Palma? @IGNSpain has shared this article from @eldiarioes VIA local outlet @LaPalmaAhora

eldiario.es/canariasahora/…