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Very strong mag. 6.5 earthquake - Sagayaran Island, 10.6 km southeast of Muricay, Philippines, on Monday, March 18, 1985 at 19:49 GMT

Very strong mag. 6.5 earthquake - Sagayaran Island, 10.6 km southeast of Muricay, Philippines, on Monday, March 18, 1985 at 19:49 GMT Very strong mag. 6.5 earthquake - Sagayaran Island, 10.6 km southeast of Muricay, Philippines, on Monday, March 18, 1985 at 19:49 GMT

Very strong magnitude 6.5 earthquake at 33 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Mar 18, 1985 19:49:45 UTC
Magnitude: 6.5
Depth: 33.0 km
Epicenter latitude / longitude: 7.758°N / 123.544°E (Celebes Sea, Philippines)
Antipode: 7.758°S / 56.456°W
Nearest volcano: Imbing (36 km / 22 mi)
Nearby towns and cities:
11 km (7 mi) SE of Muricay (pop: 132,100) --> See nearby quakes!
14 km (9 mi) ESE of Pagadian City (pop: 186,900) --> See nearby quakes!
37 km (23 mi) S of Molave (Zamboanga del Sur) (pop: 21,100) --> See nearby quakes!
41 km (25 mi) SSW of Tangub (Misamis Occidental) (pop: 29,700) --> See nearby quakes!
42 km (26 mi) SSE of Mahayag (Zamboanga del Sur) (pop: 17,100) --> See nearby quakes!
54 km (34 mi) SW of Ozamiz City (pop: 93,100) --> See nearby quakes!
86 km (53 mi) WSW of Marawi City (pop: 143,600) --> See nearby quakes!
98 km (61 mi) NW of Cotabato City (pop: 179,400) --> See nearby quakes!
116 km (72 mi) WNW of Budta (pop: 1,273,700) --> See nearby quakes!
811 km (504 mi) SSE of Manila (pop: 1,600,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.533 kmMindanao, PhilippinesUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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Aftershocks

[More info]

Recorded aftershocks, latest first (7 quakes)

Date and timeMag
Depth		LocationDetails
Aug 4, 1985 02:36
37 years ago
6.4

36 km		Sagayaran Island, 37 km S of Muricay, PhilippinesMore
May 31, 1985 07:54
37 years ago
4.7

619 km		78 km SW of Cotabato City, PH.14.B8, Mindanao Musulman, PhilippinesMore
Mar 22, 1985 19:33
37 years ago
5.0

36 km		Sagayaran Island, 33 km SE of Muricay, PhilippinesMore
Mar 22, 1985 19:03
37 years ago
5.0

52 km		Sagayaran Island, 29 km SE of Muricay, PhilippinesMore
Mar 20, 1985 00:58
37 years ago
4.8

10 km		3.1 km NW of Muricay, Zamboanga del Sur, Zamboanga Peninsula, PhilippinesMore
Mar 18, 1985 22:48
37 years ago
5.0

33 km		9.8 km N of Pagadian City, Zamboanga del Sur, Zamboanga Peninsula, PhilippinesMore
Mar 18, 1985 20:49
37 years ago
5.5

33 km		Sagayaran Island, 25 km SE of Muricay, PhilippinesMore

Earlier earthquakes in the same area

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