Tenerife volcano news & activity updates:
Teide volcano (Teneriffe Island): tiny earthquake swarm
Sunday Jun 16, 2019 16:11 PM | BY: T
Small earthquake swarm under Teide volcano on 14 June 2019 (image: IGN)A small earthquake swarm occurred last Friday (14 June) under the SE flank of Teide volcano. It was a very weak event which doesn't suggest that the volcano is about to awake in a near future.
First, IGN's seismic network located a so-called hybrid earthquake of magnitude 1.9 at 13 km depth in the area northeast of Guía de Isora and southwest of Pico Viejo at 14:28 (UTC). At 17:58 (UTC) another small earthquake was located in the same area, with similar characteristics (magnitude 1.6) and at 12 km depth.
Between these two events, a total of 512 earthquakes were registered, all of very low magnitude (less than magnitude 0.5).
The occurrence of such earthquake swarms in an active volcanic zone such as Teide-Pico Viejo is a completely normal behavior during dormant periods of the volcano. They mostly reflect fluid movements (mainly water, gasses) in the volcanic system's interior, and can suggest long-term magma influx.
The seemingly large number of quakes is due to the extreme sensitivity of today's seismometers, which detect quakes the size of shocks corresponding to a person jumping down onto the ground.
Links / Sources:
Links / Sources:
- 14-06-2019 21:15 UTC. Actividad sísmica al noreste de Guía de Isora-suroeste de Pico Viejo (Tenerife) (IGN)
Friday, Jan 06, 2017
A shallow magnitude 3 earthquake occurred almost directly under the summit of Teide volcano in 3 km depth today (at 12:18 UTC). ... [more]