M3.1 Earthquake 13 km ENE of Pāhala, Hawaii — August 31, 2023
2023-08-31 19:12:50 UTC (2023-08-31) · approx. 9:12 AM UTC-10 local
On August 31, 2023 at 19:12 UTC, a magnitude 3.1 shallow crustal earthquake struck 13 km ENE of Pāhala, Hawaii, at a depth of 30.1 km and coordinates 19.2357°, -155.3577°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 773 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 88 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-155.3577°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Pāhala, Hawaii?
The magnitude 3.1 earthquake that struck 13 km ENE of Pāhala, Hawaii on August 31, 2023 at 19:12 UTC had a depth of 30.1 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: hv73555082). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 31, 2023). M3.1 Earthquake 13 km ENE of Pāhala, Hawaii — August 31, 2023. Retrieved November 4, 2023 from https://www.earthquaketracker.org/earthquakes/event/hv73555082/