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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
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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 4.6 mbJune 21, 1990
91 km NNE of Luquillo, Puerto Rico · depth 45 km
M 4.5 mbFebruary 19, 1990
17 km SE of Esperanza, Puerto Rico · depth 10 km
M 4.6 mbFebruary 4, 1990
57 km N of Loíza, Puerto Rico · depth 60 km
M 4.5 mbJune 23, 1989
35 km SSW of Esperanza, Puerto Rico · depth 15 km
M 4.6 mbDecember 21, 1988
101 km N of Brenas, Puerto Rico · depth 44 km
M 4.8 mbNovember 4, 1988
84 km N of San Antonio, Puerto Rico · depth 30 km
M 4.5 mbNovember 4, 1988
87 km N of San Antonio, Puerto Rico · depth 27 km
M 6.0 mwNovember 3, 1988
67 km NNW of San Antonio, Puerto Rico · depth 33 km
M 4.8 mlAugust 16, 1988
34 km SSE of Esperanza, Puerto Rico · depth 10 km
M 4.5 mlMay 26, 1988
32 km SSE of Esperanza, Puerto Rico · depth 10 km
M 4.6 mbMay 30, 1987
5 km ESE of Pole Ojea, Puerto Rico · depth 5 km
M 4.7 mbFebruary 18, 1986
8 km SSW of Playita Cortada, Puerto Rico · depth 21 km
M 4.8 mbOctober 2, 1984
18 km SSE of Tallaboa, Puerto Rico · depth 18 km
M 4.6 mbAugust 20, 1984
88 km NNW of San Antonio, Puerto Rico · depth 33 km
M 4.9 mbJanuary 23, 1984
204 km N of San Juan, Puerto Rico · depth 33 km
M 5.0 mbDecember 19, 1983
70 km NNW of San Antonio, Puerto Rico · depth 53 km
M 4.8 mbMarch 9, 1983
77 km NW of San Antonio, Puerto Rico · depth 35 km
M 4.6 mbMarch 21, 1982
86 km N of Tierras Nuevas Poniente, Puerto Rico · depth 33 km
M 4.7 mbJanuary 26, 1982
16 km ESE of Esperanza, Puerto Rico · depth 33 km
M 4.7 mbApril 11, 1981
44 km N of Loíza, Puerto Rico · depth 73 km
M 4.7 mbJuly 24, 1980
90 km NNE of Luquillo, Puerto Rico · depth 61 km
M 4.6 mbJuly 19, 1979
80 km NNW of San Antonio, Puerto Rico · depth 40 km
M 4.6 mbJune 4, 1979
132 km NNE of Vieques, Puerto Rico · depth 33 km
M 4.8 msJune 3, 1979
128 km NNE of Vieques, Puerto Rico · depth 33 km
M 4.7 mbMay 15, 1978
43 km NW of San Antonio, Puerto Rico · depth 33 km
M 5.2 mbMay 2, 1977
70 km NNW of San Antonio, Puerto Rico · depth 50 km
M 5.0 mbJune 17, 1975
3 km N of Brenas, Puerto Rico · depth 111 km
M 4.7 mbOctober 26, 1974
1 km NE of Vega Alta, Puerto Rico · depth 93 km
M 4.6 mbAugust 29, 1974
30 km S of Esperanza, Puerto Rico · depth 33 km
M 4.9 mbJune 21, 1974
49 km N of Isabela, Puerto Rico · depth 46 km
M 5.6 mwApril 13, 1968
57 km N of Isabela, Puerto Rico · depth 20 km
M 5.5 mwAugust 10, 1964
55 km NNW of San Antonio, Puerto Rico · depth 25 km
M 5.5 mwJuly 14, 1964
64 km N of Tierras Nuevas Poniente, Puerto Rico · depth 10 km
M 5.5 mwSeptember 1, 1959
160 km NNE of Vieques, Puerto Rico · depth 15 km
M 5.7 mwApril 1, 1954
88 km N of San Antonio, Puerto Rico · depth 33 km
M 5.7 mwSeptember 10, 1943
78 km N of Tierras Nuevas Poniente, Puerto Rico · depth 15 km
M 6.0 mwJuly 30, 1943
81 km N of Isabela, Puerto Rico · depth 15 km
M 7.7 mwJuly 29, 1943
45 km N of San Antonio, Puerto Rico · depth 15 km
M 6.0 mwJune 12, 1939
220 km N of San Juan, Puerto Rico · depth 15 km
M 6.4 mwFebruary 10, 1920
32 km NW of Aguadilla, 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.