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M5.5 Earthquake
◍ Volcano Islands, Japan region · · updated 10/4/2026, 1:18:03 PM
Severity score
65/100
Confidence
High
Why this matters
Aftershock sequence may follow a mainshock of this size.
Key stats
Magnitude
5.5
Depth
10 km
Severity over time
Timeline
- M5.5 recorded10/4/2026, 11:12:48 AMVolcano Islands, Japan region
Sources & attribution
ScientificUSGS Earthquake Hazardsupdated 10/4/2026, 1:18:03 PM
⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.