M5.0 Earthquake near western Indian-Antarctic Ridge — January 27, 2023
2023-01-27 05:29:21 UTC (2023-01-27) · approx. 1:29 PM UTC+8 local
On January 27, 2023 at 05:29 UTC, a magnitude 5.0 shallow crustal earthquake struck near western Indian-Antarctic Ridge, at a depth of 10.0 km and coordinates -49.5553°, 117.4329°. This earthquake was detected by 36 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 385, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
117.4329°E
Technical Information
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Common Questions
How strong was the magnitude 5.0 earthquake near western Indian-Antarctic Ridge?
The magnitude 5.0 earthquake that struck near western Indian-Antarctic Ridge on January 27, 2023 at 05:29 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -49.5553°, 117.4329°, which is near western Indian-Antarctic Ridge.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us6000jjm1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 27, 2023). M5.0 Earthquake near western Indian-Antarctic Ridge — January 27, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000jjm1/