Strong earthquake · October 25, 2026

M 6.5 Earthquake, Bonin Islands, Japan region

A magnitude 6.5 (mww) earthquake struck Bonin Islands, Japan region on October 25, 2026 at 02:09 UTC, at a depth of about 492 km (306 mi), according to the USGS. The USGS PAGER alert level is green.

Updated Oct 25, 2026, 10:15 PM EDT (USGS snapshot)

M 6.5 mww PAGER Green Tsunami flag set Reviewed by a seismologist

This is not an early-warning system. For tsunami warnings see tsunami.gov; for emergencies follow local authorities.

Event details
Magnitude6.5 mww (Strong)
Time (UTC)
U.S. Eastern TimeOct 24, 2026, 10:09 PM EDT
LocationBonin Islands, Japan region
Coordinates27.795° N, 139.618° E
Depth492.4 km (306.0 mi), deep
Felt reportsNone reported
Tsunami flagYes (see note below)
PAGER alertGreen
USGS event IDus6000u4r9

Source: USGS Earthquake Hazards Program, event us6000u4r9. Last updated by the USGS Oct 26, 2026, 02:15:48 UTC.

USGS event page View on OpenStreetMap

What the numbers mean

Tsunami flag
The USGS sets this flag for large events in oceanic regions. It does not mean a tsunami happened or will happen. Official tsunami warnings come from the NOAA Tsunami Warning Centers at tsunami.gov.
PAGER alert
An automatic USGS estimate of likely fatalities and economic losses: green (little or none), yellow, orange, or red (highest). It can change as more data arrives.
Felt reports
People who felt shaking can describe it through the USGS "Did You Feel It?" survey on the event page. The count grows for hours or days after an event.
Local time
The local time at the epicenter is not shown because the area spans more than one time zone or is offshore.

Other recent earthquakes within 300 km

Nearby events from the past 30 days (M 4.5+), past 7 days (M 2.5+), and past year (M 6+)
MagnitudeLocationTimeDepth
M 4.8Bonin Islands, Japan region
4 hr ago		482.2 km
M 5.3Bonin Islands, Japan region
4 hr ago		485.1 km
M 4.2Bonin Islands, Japan region
23 hr ago		499.8 km
M 4.8Bonin Islands, Japan region
24 hr ago		498.9 km

After an earthquake

Expect aftershocks. If you are near the coast and feel strong or long shaking, move to high ground right away without waiting for an official warning. Check on neighbors and follow instructions from local emergency officials.

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