M4.5 Earthquake 184 km SSE of Dalandzadgad, Mongolia — February 22, 2021
2021-02-22 23:47:21 UTC (2021-02-22) · approx. 6:47 AM UTC+7 local
On February 22, 2021 at 23:47 UTC, a magnitude 4.5 shallow crustal earthquake struck 184 km SSE of Dalandzadgad, Mongolia, at a depth of 15.0 km and coordinates 42.1343°, 105.5542°.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
105.5542°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Dalandzadgad, Mongolia?
The magnitude 4.5 earthquake that struck 184 km SSE of Dalandzadgad, Mongolia on February 22, 2021 at 23:47 UTC had a depth of 15.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 42.1343°, 105.5542°, which is 184 km SSE of Dalandzadgad, Mongolia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000dkad). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 22, 2021). M4.5 Earthquake 184 km SSE of Dalandzadgad, Mongolia — February 22, 2021. Retrieved May 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dkad/