M4.0 Earthquake 5 km ESE of Ennenda, Switzerland — October 25, 2020
2020-10-25 19:35:44 UTC (2020-10-25) · approx. 8:35 PM UTC+1 local
Felt by 50 people across nearby locations.
On October 25, 2020 at 19:35 UTC, a magnitude 4.0 shallow crustal earthquake struck 5 km ESE of Ennenda, Switzerland, at a depth of 5.0 km and coordinates 47.0146°, 9.1408°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 50 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
9.1408°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Ennenda, Switzerland?
The magnitude 4.0 earthquake that struck 5 km ESE of Ennenda, Switzerland on October 25, 2020 at 19:35 UTC had a depth of 5.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 47.0146°, 9.1408°, which is 5 km ESE of Ennenda, Switzerland.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000cd1u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 25, 2020). M4.0 Earthquake 5 km ESE of Ennenda, Switzerland — October 25, 2020. Retrieved January 9, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000cd1u/