M4.7 Earthquake 62 km SSE of Altai, Mongolia — December 22, 2021
2021-12-22 21:17:24 UTC (2021-12-22) · approx. 3:17 AM UTC+6 local
On December 22, 2021 at 21:17 UTC, a magnitude 4.7 shallow crustal earthquake struck 62 km SSE of Altai, Mongolia, at a depth of 10.0 km and coordinates 45.8435°, 96.5436°.
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
96.5436°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Altai, Mongolia?
The magnitude 4.7 earthquake that struck 62 km SSE of Altai, Mongolia on December 22, 2021 at 21:17 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 45.8435°, 96.5436°, which is 62 km SSE of Altai, Mongolia.
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: us6000genq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 22, 2021). M4.7 Earthquake 62 km SSE of Altai, Mongolia — December 22, 2021. Retrieved March 1, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000genq/