⊕earthquakeactive

M4.1 Earthquake — 21 km SE of Esperanza, Puerto Rico

M4.1

17.9478°N, 65.3403°W·US-PR

Started 16h ago

USGS data as of 02:00 UTC

Event Details

Typeearthquake

SeverityM4.1

Statusactive

Location17.9478°N, 65.3403°W (PR)

Started2026-10-28T09:43:59.075+00:00

Last Updated2026-10-29T02:00:40.572+00:00

Sourceusgs

Source URLearthquake.usgs.gov

Confidence1.00

Impact Zones — modeled

Affected Zone

Shaking felt. Minor damage possible in vulnerable structures.

33.5 km

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

Impact Analysis

Population Exposed81,795

Schools10

Fire Stations1

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

2021 PR Earthquake66% match

M4.8 Earthquake in PR, 9km from current event

1982 PR Earthquake59% match

M4.7 Earthquake in PR, 10km from current event

2016 PR Earthquake59% match

M4.6 Earthquake in PR, 57km from current event

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

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All US hazard profiles Scoring methodology

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