M4.3 Earthquake 85 km S of San Francisco del Mar Viejo, Mexico — November 17, 2020
2020-11-17 23:55:54 UTC (2020-11-17) · approx. 5:55 PM UTC-6 local
On November 17, 2020 at 23:55 UTC, a magnitude 4.3 shallow crustal earthquake struck 85 km S of San Francisco del Mar Viejo, Mexico, at a depth of 35.0 km and coordinates 15.4650°, -94.5526°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-94.5526°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near San Francisco del Mar Viejo, Mexico?
The magnitude 4.3 earthquake that struck 85 km S of San Francisco del Mar Viejo, Mexico on November 17, 2020 at 23:55 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000cpnw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, November 17, 2020). M4.3 Earthquake 85 km S of San Francisco del Mar Viejo, Mexico — November 17, 2020. Retrieved January 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000cpnw/