M4.8 Earthquake 34 km SSW of Ocós, Guatemala — September 22, 2020
2020-09-22 22:56:31 UTC (2020-09-22) · approx. 4:56 PM UTC-6 local
Felt by 6 people across nearby locations. Aftershock of the M5.0 mainshock.
On September 22, 2020 at 22:56 UTC, a magnitude 4.8 shallow crustal earthquake struck 34 km SSW of Ocós, Guatemala, at a depth of 62.2 km and coordinates 14.2293°, -92.3230°.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 21 days ago 71 km SSW of Ocós, Guatemala. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 6 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
-92.3230°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.8 earthquake near Ocós, Guatemala?
The magnitude 4.8 earthquake that struck 34 km SSW of Ocós, Guatemala on September 22, 2020 at 22:56 UTC had a depth of 62.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 14.2293°, -92.3230°, which is 34 km SSW of Ocós, Guatemala.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.0 one earlier?
No. This magnitude 4.8 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 71 km SSW of Ocós, Guatemala. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Authoritative source: USGS event page (event ID: us6000bzvq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 22, 2020). M4.8 Earthquake 34 km SSW of Ocós, Guatemala — September 22, 2020. Retrieved November 28, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bzvq/