4.7

M4.7 Earthquake 51 km SW of Chauk, MyanmarAugust 20, 2023

2023-08-20 07:42:43 UTC (2023-08-20) · approx. 1:42 PM UTC+6 local

MagnitudeM4.7(mb)
Time07:42 UTC1:42 PM UTC+6
Depth61.1 kmshallow crustal
Coordinates20.636°, 94.404°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 20, 2023 at 07:42 UTC, a magnitude 4.7 shallow crustal earthquake struck 51 km SW of Chauk, Myanmar, at a depth of 61.1 km and coordinates 20.6364°, 94.4043°. This earthquake was detected by 125 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

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.

Map showing earthquake epicenter at 20.64°, 94.40°

Earthquake Details

Magnitude
4.7 mb
Depth
61.1 km
shallow crustal
Location
20.6364°N
94.4043°E

Technical Information

Event ID
us7000kpky
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
125
Azimuthal Gap
56.0°
Min Station Distance
4.797°
RMS Residual
0.54 sec
Last Updated
2024-01-18 20:44:43 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Chauk, Myanmar?

The magnitude 4.7 earthquake that struck 51 km SW of Chauk, Myanmar on August 20, 2023 at 07:42 UTC had a depth of 61.1 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 20.6364°, 94.4043°, which is 51 km SW of Chauk, Myanmar.

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: us7000kpky). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 20, 2023). M4.7 Earthquake 51 km SW of Chauk, MyanmarAugust 20, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000kpky/