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M4.8 Earthquake — 36 km SSW of Merizo Village, Guam

M4.8
12.9476°N, 144.5819°E·US-GU
Started 2h ago
USGS data as of
Event Details
Typeearthquake
SeverityM4.8
Statusactive
Location12.9476°N, 144.5819°E (GU)
Started2026-10-29T02:18:21.049+00:00
Last Updated2026-10-29T05:05:33.932+00:00
Sourceusgs
Confidence1.00
Impact Zones — modeled
Affected Zone
Shaking felt. Minor damage possible in vulnerable structures.
109.0 km

Zone estimates are based on scientific models and may differ from actual local conditions.

Impact Analysis
Population Exposed4,479,031
Structures in Zone445,032
Hospitals4
Schools64
Fire Stations16

Population from ACS 5-Year 2022 tract sampling; structure counts from Microsoft Building Footprints or Census ACS housing data, capped by USGS NLCD 2021 developed land. Estimates for situational awareness — not for actuarial, regulatory, or underwriting use.

Historical Comparison
2006 GU Earthquake68% match

M5 Earthquake in GU, 62km from current event

GU
1985 GU Earthquake68% match

M5.1 Earthquake in GU, 24km from current event

GU
1994 GU Earthquake66% match

M5 Earthquake in GU, 56km from current event

GU

Historical comparison based on peril type, geography, and severity. Past events do not predict future outcomes.

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Zone estimates are based on scientific models and may differ from actual local conditions.