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Puerto Rico Earthquake History
Since October 11, 1915, the USGS has recorded 169 earthquakes of magnitude 4.5 or greater in Puerto Rico, 12 of them magnitude 6 or above. The strongest was M 7.7.
By decade
'10
'20
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Strongest in Puerto Rico
M 7.7 · 45 km N of San Antonio, Puerto RicoJuly 29, 1943M 7.1 · 24 km NNW of San Antonio, Puerto RicoOctober 11, 1918M 6.4 · 4 km SSE of Indios, Puerto RicoJanuary 7, 2020M 6.4 · 61 km N of Hatillo, Puerto RicoJanuary 13, 2014M 6.4 · 32 km NW of Aguadilla, Puerto RicoFebruary 10, 1920M 6.4 · 120 km N of Isabela, Puerto RicoOctober 11, 1915M 6.3 · 6 km WNW of Aguadilla, Puerto RicoOctober 25, 1918M 6.1 · 18 km NNW of San Antonio, Puerto RicoNovember 12, 1918M 6.1 · 15 km WNW of San Antonio, Puerto RicoOctober 11, 1918M 6.0 · 220 km N of San Juan, Puerto RicoJune 12, 1939
All recorded earthquakes
M 6.1 mwNovember 12, 1918
18 km NNW of San Antonio, Puerto Rico · depth 15 km
M 6.3 mwOctober 25, 1918
6 km WNW of Aguadilla, Puerto Rico · depth 15 km
M 5.8 mwOctober 18, 1918
33 km NW of San Antonio, Puerto Rico · depth 15 km
M 5.9 mwOctober 14, 1918
78 km N of Arecibo, Puerto Rico · depth 15 km
M 5.8 mwOctober 12, 1918
12 km N of Garrochales, Puerto Rico · depth 25 km
M 6.1 mwOctober 11, 1918
15 km WNW of San Antonio, Puerto Rico · depth 15 km
M 7.1 mwOctober 11, 1918
24 km NNW of San Antonio, Puerto Rico · depth 15 km
M 6.0 mwJuly 27, 1917
93 km NNW of San Antonio, Puerto Rico · depth 15 km
M 6.4 mwOctober 11, 1915
120 km N of Isabela, Puerto Rico · depth 15 km
Source: U.S. Geological Survey, Earthquake Hazards Program. Older and smaller earthquakes are under-counted relative to recent decades as instrumentation improved. A record of past shaking is not a forecast. See About the Data.