4.9

M4.9 Earthquake 208 km NNE of Shi Yomi, IndiaAugust 22, 2023

2023-08-22 18:46:54 UTC (2023-08-22) · approx. 12:46 AM UTC+6 local

MagnitudeM4.9(mb)
Time18:46 UTC12:46 AM UTC+6
Depth31.9 kmshallow crustal
Coordinates30.364°, 94.849°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 22, 2023 at 18:46 UTC, a magnitude 4.9 shallow crustal earthquake struck 208 km NNE of Shi Yomi, India, at a depth of 31.9 km and coordinates 30.3642°, 94.8494°. This earthquake was detected by 161 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 30.36°, 94.85°

Earthquake Details

Magnitude
4.9 mb
Depth
31.9 km
shallow crustal
Location
30.3642°N
94.8494°E

Technical Information

Event ID
us7000kq64
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
161
Azimuthal Gap
40.0°
Min Station Distance
3.294°
RMS Residual
0.61 sec
Last Updated
2023-10-28 19:15:34 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Shi Yomi, India?

The magnitude 4.9 earthquake that struck 208 km NNE of Shi Yomi, India on August 22, 2023 at 18:46 UTC had a depth of 31.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 30.3642°, 94.8494°, which is 208 km NNE of Shi Yomi, India.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000kq64). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 22, 2023). M4.9 Earthquake 208 km NNE of Shi Yomi, IndiaAugust 22, 2023. Retrieved October 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kq64/