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M7.1 earthquake, Peru, 1991-04-05

MagnitudeM7.1mw

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Depth20 km

Time (UTC)1991-04-05 04:19

Rank in 19918 / 137among M6+

Rank since 19001180 / 14,458

Energy vs an M6×45approx.

11 km NE of Rioja, Peru · -5.98, -77.09

M6.5+ within 300 km (largest first)

2019 M8.0M8.0

2005 M7.5M7.5

1906 M7.5M7.5

2021 M7.5M7.5

1928 M7.3M7.3

1997 M7.2M7.2

1991 M7.1M7.1

1928 M7.1M7.1

1983 M7.0M7.0

1946 M6.8M6.8

1968 M6.8M6.8

1986 M6.8M6.8

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1991-04-04	1991-04-04 15:23	21 km	4 km ENE of Rioja, Peru
M6.6 1990-05-30	1990-05-30 02:34	24 km	6 km ESE of Segunda Jerusalén - Azunguillo, Peru
M6.8 1986-11-23	1986-11-23 01:39	106 km	109 km W of Alianza Cristiana, Peru
M7.0 1983-04-12	1983-04-12 12:07	104 km	92 km NNE of La Peca, Peru
M6.2 1975-03-18	1975-03-18 17:21	98 km	76 km NNW of Barranca, Peru
M6.4 1972-03-20	1972-03-20 07:33	52 km	6 km N of Saposoa, Peru
M6.8 1968-06-19	1968-06-19 08:13	16 km	48 km NNE of Segunda Jerusalén - Azunguillo, Peru
M6.2 1963-11-03	1963-11-03 03:10	25 km	98 km E of Gualaquiza, Ecuador
M6.5 1963-04-13	1963-04-13 02:20	120 km	17 km NE of Tabaloslos, Peru
M6.1 1953-04-17	1953-04-17 00:02	15 km	52 km WSW of Barranca, Peru

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.