4.5

M4.5 Earthquake near Mid-Indian RidgeApril 26, 2023

2023-04-26 17:06:14 UTC (2023-04-26) · approx. 9:06 PM UTC+4 local

MagnitudeM4.5(mb)
Time17:06 UTC9:06 PM UTC+4
Depth10.0 kmshallow crustal
Coordinates-16.345°, 67.123°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 26, 2023 at 17:06 UTC, a magnitude 4.5 shallow crustal earthquake struck near Mid-Indian Ridge, at a depth of 10.0 km and coordinates -16.3447°, 67.1231°. This earthquake was detected by 47 seismic stations with excellent 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.

Map showing earthquake epicenter at -16.34°, 67.12°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
-16.3447°N
67.1231°E

Technical Information

Event ID
us7000jxrj
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
47
Azimuthal Gap
66.0°
Min Station Distance
4.925°
RMS Residual
0.95 sec
Last Updated
2024-01-18 19:52:17 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Mid-Indian Ridge?

The magnitude 4.5 earthquake that struck near Mid-Indian Ridge on April 26, 2023 at 17:06 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 -16.3447°, 67.1231°, which is near Mid-Indian Ridge.

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: us7000jxrj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, April 26, 2023). M4.5 Earthquake near Mid-Indian RidgeApril 26, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000jxrj/