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M7.2 earthquake, Philippines, 1975-10-31

MagnitudeM7.2ms

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Depth50 km

Time (UTC)1975-10-31 08:28

Rank in 19759 / 106among M6+

Rank since 1900915 / 14,458

Energy vs an M6×63approx.

66 km ENE of Alugan, Philippines · 12.54, 125.99

M6.5+ within 300 km (largest first)

2012 M7.6M7.6

1943 M7.4M7.4

1988 M7.3M7.3

1925 M7.2M7.2

1995 M7.2M7.2

1975 M7.2M7.2

1908 M7.1M7.1

1982 M7.1M7.1

1995 M7.1M7.1

1996 M7.1M7.1

2025 M6.9M6.9

1995 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1975-08-23	1975-08-23 15:06	40 km	16 km NE of Cagdianao, Philippines
M6.0 1973-07-05	1973-07-05 22:46	38 km	60 km SE of Bato, Philippines
M6.5 1973-07-03	1973-07-03 07:03	33 km	Samar, Philippines
M6.0 1973-07-03	1973-07-03 06:37	44 km	3 km ENE of Arteche, Philippines
M6.5 1971-07-25	1971-07-25 12:51	20 km	6 km W of San Fernando, Philippines
M6.1 1971-07-02	1971-07-02 05:34	12 km	13 km NNE of Miaga, Philippines
M6.6 1970-11-13	1970-11-13 14:16	22 km	8 km NNE of Placer, Philippines
M6.0 1967-08-19	1967-08-19 15:28	25 km	32 km E of Loreto, Philippines
M6.5 1964-11-24	1964-11-24 12:41	51 km	54 km NNE of Biri, Philippines
M6.5 1957-08-18	1957-08-18 08:37	20 km	9 km NNE of Palanas, Philippines

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.