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M7.1 earthquake, Puerto Rico, 1918-10-11

MagnitudeM7.1mw

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Depth15 km

Time (UTC)1918-10-11 14:14

Rank in 191810 / 94among M6+

Rank since 19001105 / 14,458

Energy vs an M6×45approx.

24 km NNW of San Antonio, Puerto Rico · 18.70, -67.19

M6.5+ within 300 km (largest first)

1946 M7.8M7.8

1943 M7.7M7.7

1948 M7.1M7.1

1918 M7.1M7.1

1946 M7.0M7.0

1984 M6.9M6.9

1917 M6.8M6.8

1916 M6.8M6.8

1948 M6.7M6.7

1971 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.8 1917-07-27	1917-07-27 01:01	15 km	94 km NE of Punta Cana, Dominican Republic
M6.4 1916-11-30	1916-11-30 03:18	15 km	52 km NE of Samaná, Dominican Republic
M6.8 1916-04-24	1916-04-24 04:26	100 km	26 km SE of Boca de Yuma, Dominican Republic
M6.4 1915-10-11	1915-10-11 19:33	15 km	120 km N of Isabela, Puerto Rico
M6.0 1914-02-28	1914-02-28 05:02	15 km	9 km ENE of Sabana de la Mar, Dominican Republic

Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.