Earthquake swarm near Wildhorn-Sanetschpass, Valais

An unusual earthquake swarm is ongoing since Tuesday morning, beneath the south flank of Mount Wildhorn and towards the West to Sanetschpass, in the canton of Valais. It is unusual as more than a dozen of felt events have been recorded so far in just two days, amongst over 150 in total. However, the Gutenberg-Richter b-value of the swarm seems to be a common value.

Below is a time evolution figure of the earthquakes and their magnitudes. The released energy overall is equivalent to a magnitude 3.6 earthquake so far. The swarm cannot be considered to be finished as of now. Updates will follow on the SED website as well as here.