M4.7 Earthquake 136 km SSW of Chirilagua, El Salvador — December 17, 2022
2022-12-17 16:50:37 UTC (2022-12-17) · approx. 10:50 AM UTC-6 local
On December 17, 2022 at 16:50 UTC, a magnitude 4.7 shallow crustal earthquake struck 136 km SSW of Chirilagua, El Salvador, at a depth of 10.0 km and coordinates 12.0408°, -88.5035°. This earthquake was detected by 25 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-88.5035°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.7 earthquake near Chirilagua, El Salvador?
The magnitude 4.7 earthquake that struck 136 km SSW of Chirilagua, El Salvador on December 17, 2022 at 16:50 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.0408°, -88.5035°, which is 136 km SSW of Chirilagua, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000ja0y). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 17, 2022). M4.7 Earthquake 136 km SSW of Chirilagua, El Salvador — December 17, 2022. Retrieved February 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000ja0y/