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M6.9 earthquake, Iran, 1977-03-21

MagnitudeM6.9ms

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Depth29 km

Time (UTC)1977-03-21 21:18

Rank in 197712 / 85among M6+

Rank since 19001850 / 14,458

Energy vs an M6×22approx.

48 km NNE of Bandar Abbas, Iran · 27.61, 56.39

M6.5+ within 300 km (largest first)

1977 M6.9M6.9

1923 M6.7M6.7

1981 M6.7M6.7

2010 M6.7M6.7

1990 M6.6M6.6

1999 M6.6M6.6

2003 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1975-03-07	1975-03-07 07:04	27 km	34 km N of Bandar Abbas, Iran
M6.0 1971-11-08	1971-11-08 03:06	17 km	60 km NW of Bandar-e Lengeh, Iran
M6.0 1971-04-12	1971-04-12 19:03	10 km	21 km W of Ḩājjīābād, Iran
M6.4 1961-06-11	1961-06-11 05:10	15 km	44 km ENE of Ger?sh, Iran
M6.4 1956-10-31	1956-10-31 14:03	15 km	43 km SE of Ger?sh, Iran
M6.3 1949-04-24	1949-04-24 04:22	15 km	21 km NNE of Bandar Abbas, Iran
M6.1 1948-07-05	1948-07-05 13:53	15 km	80 km NW of Bam, Iran
M6.1 1947-10-03	1947-10-03 06:13	15 km	108 km E of Dib Dibba, Oman
M6.1 1945-01-11	1945-01-11 02:03	15 km	72 km E of Bandar-e Lengeh, Iran
M6.0 1934-01-02	1934-01-02 20:55	15 km	81 km ESE of Kerman, Iran

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.