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M 6.4 earthquake – 4 km SSE of Indios, Puerto Rico

·
Local time: Jan 7, 2020 · 04:24 (UTC-4)

StrongShallow · 6.0 kmPAGER orangeTsunami information issued Reviewed by a seismologist
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Magnitude
6.4moment magnitude (mw)
Depth
6.0 kmShallow earthquake
Epicenter
17.958, -66.81110 km from Yauco
Energy released
60 kilotons of TNTabout 4 × Hiroshima
Felt reports
1,615"Did You Feel It?" responses
Shaking intensity
7.9max. instrumental (MMI)
Aftershocks
500M2.5+ within 33 km, up to 60 days
Significance
1,820USGS score, 0–1,000+
The strongest here since 2014

The last earthquake at least as strong within 300 km struck on Jan 13, 2014.

How strong was it?

Strong earthquake. It released 60 kilotons of TNT, 126 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.

Chile 1960 M 9.5
Japan 2011 M 9.1
San Francisco 1906 M 7.9
Turkey 2023 M 7.8
Haiti 2010 M 7.0
Northridge 1994 M 6.7
This earthquake M 6.4

Aftershocks

500 earthquakes of M2.5+ within 33 km in the 60 days after.

The strongest earthquakes within 300 km

Since 1900, around Puerto Rico.

In the week before

Earthquakes within 33 km in the 7 days before this one: possible foreshocks.