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Very strong mag. 6.6 earthquake - 53 km south of General Santos City, Philippines, on Tuesday, June 17, 1986 at 18:13 GMT

Very strong mag. 6.6 earthquake - 53 km south of General Santos City, Philippines, on Tuesday, June 17, 1986 at 18:13 GMT Very strong mag. 6.6 earthquake - 53 km south of General Santos City, Philippines, on Tuesday, June 17, 1986 at 18:13 GMT

Very strong magnitude 6.6 earthquake at 32 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.

Earthquake details

Date & timeJun 17, 1986 18:13:11 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.6
Depth31.9 km
Epicenter latitude / longitude5.644°N / 125.259°E (Celebes Sea, Philippines)
Antipode5.644°S / 54.741°W
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoBalut (30 km / 19 mi)
Nearby towns and cities7 km (4 mi) SSW of Pangyan (Sarangani) (pop: 5,260) | Show on map | Quakes nearby
21 km (13 mi) SSE of Glan (Sarangani) (pop: 24,300) | Show on map | Quakes nearby
36 km (23 mi) S of Malapatan (Sarangani) (pop: 19,400) | Show on map | Quakes nearby
51 km (32 mi) S of Alabel (pop: 43,300) | Show on map | Quakes nearby
53 km (33 mi) S of General Santos City (pop: 679,600) | Show on map | Quakes nearby
68 km (42 mi) SSE of Polomolok (pop: 64,000) | Show on map | Quakes nearby
71 km (44 mi) S of Maluñgun (pop: 52,200) | Show on map | Quakes nearby
94 km (59 mi) SSW of Malita (pop: 41,100) | Show on map | Quakes nearby
164 km (102 mi) SSW of Central (pop: 1,212,500) | Show on map | Quakes nearby
196 km (122 mi) SSE of Budta (pop: 1,273,700) | Show on map | Quakes nearby
Estimated seismic energy released5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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
6.632 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 (8 quakes)

Date and timeMag
Depth
LocationDetails
Oct 29, 1986 20:11
36 years ago
5.6

72 km
Sarangani, 47 km SE of General Santos City, PhilippinesMore
Oct 18, 1986 08:54
36 years ago
5.2

201 km
85 km S of Glan, Sarangani, Soccsksargen, PhilippinesMore
Oct 15, 1986 05:56
36 years ago
3.7

209 km
49 km S of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Sep 12, 1986 11:27
36 years ago
5.2

33 km
98 km S of Alabel, Sarangani, Soccsksargen, PhilippinesMore
Sep 6, 1986 23:06
36 years ago
5.3

109 km
122 km SE of Alabel, Sarangani, Soccsksargen, PhilippinesMore
Jul 19, 1986 04:35
36 years ago
5.0

145 km
81 km E of Alabel, Sarangani, Soccsksargen, PhilippinesMore
Jul 12, 1986 10:17
36 years ago
5.5

88 km
Davao Occidental, 65 km SE of General Santos City, PhilippinesMore
Jun 18, 1986 05:26
36 years ago
4.6

87 km
27 km NE of Olanivan Island, Province of Davao del Sur, PhilippinesMore

Earlier earthquakes in the same area

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