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M6.6 earthquake, southeast of the Loyalty Islands, 1988-07-23

MagnitudeM6.6mw

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Depth18 km

Time (UTC)1988-07-23 14:25

Rank in 198833 / 122among M6+

Rank since 19003516 / 14,458

Energy vs an M6×8approx.

southeast of the Loyalty Islands · -22.13, 174.90

M6.5+ within 300 km (largest first)

1990 M7.6M7.6

2021 M7.3M7.3

2016 M7.2M7.2

1926 M7.0M7.0

2021 M6.9M6.9

1988 M6.8M6.8

1993 M6.7M6.7

1905 M6.7M6.7

1990 M6.6M6.6

2022 M6.6M6.6

1988 M6.6M6.6

1934 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1987-06-24	1987-06-24 03:30	33 km	Vanuatu region
M6.2 1982-07-17	1982-07-17 22:02	37 km	Vanuatu region
M6.0 1982-03-04	1982-03-04 09:11	45 km	southeast of the Loyalty Islands
M6.2 1981-02-22	1981-02-22 21:45	33 km	southeast of the Loyalty Islands
M6.1 1978-07-24	1978-07-24 19:45	37 km	Vanuatu region
M6.1 1974-03-23	1974-03-23 20:25	33 km	Vanuatu region
M6.3 1972-01-22	1972-01-22 21:50	10 km	Vanuatu region
M6.1 1971-12-09	1971-12-09 15:00	10 km	Vanuatu region
M6.1 1966-06-13	1966-06-13 07:33	33 km	Vanuatu region
M6.2 1965-10-01	1965-10-01 13:22	546 km	Vanuatu region

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.