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M6.6 earthquake, Mexico, 1972-10-20

MagnitudeM6.6mw

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Depth12 km

Time (UTC)1972-10-20 08:17

Rank in 197228 / 132among M6+

Rank since 19003278 / 14,458

Energy vs an M6×9approx.

194 km SW of La Cruz de Loreto, Mexico · 18.81, -106.81

M6.5+ within 300 km (largest first)

1995 M8.0M8.0

1932 M7.7M7.7

2003 M7.6M7.6

1900 M7.3M7.3

1934 M7.0M7.0

1905 M7.0M7.0

1997 M6.9M6.9

1925 M6.9M6.9

1931 M6.8M6.8

1932 M6.8M6.8

1965 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.7 1965-12-06	1965-12-06 11:34	12 km	219 km WSW of La Cruz de Loreto, Mexico
M6.5 1955-06-14	1955-06-14 06:11	15 km	208 km SW of La Cruz de Loreto, Mexico
M6.2 1950-10-21	1950-10-21 09:43	15 km	232 km SSW of Barra de Navidad, Mexico
M6.6 1950-09-29	1950-09-29 06:32	15 km	222 km WSW of La Cruz de Loreto, Mexico
M6.4 1949-12-25	1949-12-25 22:40	15 km	46 km SSW of El Naranjo, Mexico
M6.1 1949-02-14	1949-02-14 18:07	15 km	258 km SSW of Barra de Navidad, Mexico
M6.6 1948-12-04	1948-12-04 00:22	15 km	142 km WNW of Corral del Risco (Punta de Mita), Mexico
M6.1 1947-11-21	1947-11-21 04:17	15 km	216 km WSW of La Cruz de Loreto, Mexico
M6.3 1947-11-21	1947-11-21 03:54	15 km	270 km SW of La Cruz de Loreto, Mexico
M6.3 1944-06-16	1944-06-16 21:51	15 km	73 km SW of Barra de Navidad, Mexico

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.