M3.1 Earthquake 12 km NW of Pinnacles, CA — December 22, 2024
2024-12-22 15:21:33 UTC (2024-12-22) · approx. 7:21 AM UTC-8 local
On December 22, 2024 at 15:21 UTC, a magnitude 3.1 shallow crustal earthquake struck 12 km NW of Pinnacles, CA, at a depth of 6.4 km and coordinates 36.6037°, -121.2407°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 697 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 84 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-121.2407°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Pinnacles, CA?
The magnitude 3.1 earthquake that struck 12 km NW of Pinnacles, CA on December 22, 2024 at 15:21 UTC had a depth of 6.4 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: nc75106701). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, December 22, 2024). M3.1 Earthquake 12 km NW of Pinnacles, CA — December 22, 2024. Retrieved February 27, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75106701/