4.6

M4.6 Earthquake 34 km SSW of Turt, Mongolia — April 15, 2021

2021-04-15 16:42:04 UTC (2021-04-15) · approx. 11:42 PM UTC+7 local

MagnitudeM4.6(mb)
Time16:42 UTC≈ 11:42 PM UTC+7
Depth18.6 kmshallow crustal
Coordinates51.244°, 100.400°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 15, 2021 at 16:42 UTC, a magnitude 4.6 shallow crustal earthquake struck 34 km SSW of Turt, Mongolia, at a depth of 18.6 km and coordinates 51.2438°, 100.3996°.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.24°, 100.40°

Earthquake Details

Magnitude
4.6 mb
Depth
18.6 km
shallow crustal
Location
51.2438°N
100.3996°E

Technical Information

Event ID
us6000e1vu
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Azimuthal Gap
35.0°
Min Station Distance
2.075°
RMS Residual
0.67 sec
Last Updated
2021-06-19 21:25:52 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Turt, Mongolia?

The magnitude 4.6 earthquake that struck 34 km SSW of Turt, Mongolia on April 15, 2021 at 16:42 UTC had a depth of 18.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 51.2438°, 100.3996°, which is 34 km SSW of Turt, Mongolia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000e1vu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, April 15, 2021). M4.6 Earthquake 34 km SSW of Turt, Mongolia — April 15, 2021. Retrieved June 19, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e1vu/