M4.5 Earthquake 54 km WSW of Saynshand, Mongolia — December 25, 2022
2022-12-25 22:06:23 UTC (2022-12-25) · approx. 5:06 AM UTC+7 local
On December 25, 2022 at 22:06 UTC, a magnitude 4.5 shallow crustal earthquake struck 54 km WSW of Saynshand, Mongolia, at a depth of 10.0 km and coordinates 44.6244°, 109.5340°. This earthquake was detected by 12 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
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
109.5340°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Saynshand, Mongolia?
The magnitude 4.5 earthquake that struck 54 km WSW of Saynshand, Mongolia on December 25, 2022 at 22:06 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 44.6244°, 109.5340°, which is 54 km WSW of Saynshand, 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: us7000j2k9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 25, 2022). M4.5 Earthquake 54 km WSW of Saynshand, Mongolia — December 25, 2022. Retrieved March 7, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j2k9/