5.5

M5.5 Earthquake near east central Pacific OceanAugust 10, 2026

2026-08-10 05:41:44 UTC (2 hours ago) · approx. 9:41 PM UTC-8 local

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MagnitudeM5.5(mb)
Time05:41 UTC9:41 PM UTC-8
Depth10.0 kmshallow crustal
Coordinates0.311°, -114.648°
Felt byNo felt reports
Status✓ Reviewed by USGS· green PAGER
green Alertno significant casualties or damage expected

On August 10, 2026 at 05:41 UTC, a magnitude 5.5 shallow crustal earthquake struck near east central Pacific Ocean, at a depth of 10.0 km and coordinates 0.3112°, -114.6480°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 83 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 465, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 km — a useful intuition for the size of the slip patch on the fault.

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Map showing earthquake epicenter at 0.31°, -114.65°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.5 earthquake near east central Pacific Ocean

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
5.5 mb
Depth
10.0 km
shallow crustal
Location
0.3112°N
-114.6480°E
Intensity (MMI)
0.0
weak

Technical Information

Event ID
us6000tjjj
Event Type
earthquake
Status
✓ Reviewed
Significance
465
Stations Used
83
Azimuthal Gap
60.0°
Min Station Distance
23.284°
RMS Residual
1.02 sec
Last Updated
2026-08-10 07:48:32 UTC

Common Questions

How strong was the magnitude 5.5 earthquake near east central Pacific Ocean?

The magnitude 5.5 earthquake that struck near east central Pacific Ocean on August 10, 2026 at 05:41 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 0.3112°, -114.6480°, which is near east central Pacific Ocean.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000tjjj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 10, 2026). M5.5 Earthquake near east central Pacific OceanAugust 10, 2026. Retrieved August 10, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjjj/