4.1

M4.1 Earthquake 85 km E of Falam, MyanmarDecember 18, 2023

2023-12-18 23:43:13 UTC (2023-12-18) · approx. 5:43 AM UTC+6 local

MagnitudeM4.1(mb)
Time23:43 UTC5:43 AM UTC+6
Depth87.0 kmintermediate depth
Coordinates22.820°, 94.507°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 18, 2023 at 23:43 UTC, a magnitude 4.1 intermediate depth earthquake struck 85 km E of Falam, Myanmar, at a depth of 87.0 km and coordinates 22.8195°, 94.5073°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 22.82°, 94.51°

Earthquake Details

Magnitude
4.1 mb
Depth
87.0 km
intermediate depth
Location
22.8195°N
94.5073°E

Technical Information

Event ID
us6000m15i
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
23
Azimuthal Gap
115.0°
Min Station Distance
2.648°
RMS Residual
0.69 sec
Last Updated
2024-02-27 22:56:56 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Falam, Myanmar?

The magnitude 4.1 earthquake that struck 85 km E of Falam, Myanmar on December 18, 2023 at 23:43 UTC had a depth of 87.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000m15i). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, December 18, 2023). M4.1 Earthquake 85 km E of Falam, MyanmarDecember 18, 2023. Retrieved February 27, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000m15i/