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Strong mag. 6.6 earthquake - 50 km southeast of Alabel, Sarangani, Soccsksargen, Philippines, on Monday, October 29, 1984 at 23:18 GMT

Strong mag. 6.6 earthquake - 50 km southeast of Alabel, Sarangani, Soccsksargen, Philippines, on Monday, October 29, 1984 at 23:18 GMT Strong mag. 6.6 earthquake - 50 km southeast of Alabel, Sarangani, Soccsksargen, Philippines, on Monday, October 29, 1984 at 23:18 GMT

Strong magnitude 6.6 earthquake at 153 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Oct 29, 1984 23:18:05 UTC
Magnitude: 6.6
Depth: 153.2 km
Epicenter latitude / longitude: 5.731°N / 125.543°E (Philippine Sea, Philippines)
Antipode: 5.731°S / 54.457°W
Nearest volcano: Balut (41 km / 25 mi)
Nearby towns and cities:
16 km (10 mi) NE of Nuing (pop: 2,610) --> See nearby quakes!
39 km (24 mi) SE of Malapatan (Sarangani) (pop: 19,400) --> See nearby quakes!
39 km (24 mi) ESE of Glan (Sarangani) (pop: 24,300) --> See nearby quakes!
50 km (31 mi) SE of Alabel (pop: 43,300) --> See nearby quakes!
59 km (37 mi) SE of General Santos City (pop: 679,600) --> See nearby quakes!
67 km (42 mi) SSE of Maluñgun (pop: 52,200) --> See nearby quakes!
76 km (47 mi) SE of Polomolok (pop: 64,000) --> See nearby quakes!
76 km (48 mi) S of Malita (pop: 41,100) --> See nearby quakes!
149 km (93 mi) S of Central (pop: 1,212,500) --> See nearby quakes!
204 km (127 mi) SE of Budta (pop: 1,273,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 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
6.6153 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 (27 quakes)

Date and timeMag
Depth
LocationDetails
Apr 8, 1985 03:34
37 years ago
4.7

33 km
Pulau Baronto, 171 km S of Mati, Province of Davao Oriental, PhilippinesMore
Mar 15, 1985 19:28
37 years ago
3.6

165 km
64 km SE of Sigaboy Island, Province of Davao Oriental, PhilippinesMore
Mar 7, 1985 11:19
37 years ago
5.9

92 km
126 km S of Mati, Province of Davao Oriental, PhilippinesMore
Mar 6, 1985 06:10
37 years ago
4.5

143 km
Philippines, 28 km W of Pulau Baronto Island, IndonesiaMore
Mar 4, 1985 09:32
37 years ago
5.2

206 km
83 km S of Glan, Sarangani, Soccsksargen, PhilippinesMore
Feb 23, 1985 01:01
37 years ago
5.4

163 km
21 km W of Sigaboy Island, Province of Davao Oriental, PhilippinesMore
Feb 20, 1985 09:03
37 years ago
4.2

99 km
32 km SE of Sigaboy Island, Province of Davao Oriental, PhilippinesMore
Feb 16, 1985 22:27
37 years ago
5.0

203 km
32 km NW of Pulau Kawio Island, North Sulawesi, IndonesiaMore
Feb 15, 1985 08:59
37 years ago
4.9

70 km
82 km E of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Jan 29, 1985 16:33
37 years ago
3.7

165 km
45 km NW of Pulau Kawio Island, North Sulawesi, IndonesiaMore
Jan 6, 1985 18:26
37 years ago
5.1

157 km
77 km E of Alabel, Sarangani, Soccsksargen, PhilippinesMore
Jan 1, 1985 04:04
37 years ago
4.5

84 km
82 km E of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Dec 29, 1984 20:32
37 years ago
4.3

197 km
Indonesia, 39 km S of Sarangani, Davao Occidental, PhilippinesMore
Dec 29, 1984 14:26
37 years ago
4.8

218 km
39 km S of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Dec 18, 1984 16:57
37 years ago
5.1

139 km
81 km E of Alabel, Sarangani, Soccsksargen, PhilippinesMore
Dec 10, 1984 03:16
37 years ago
4.7

179 km
Pulau Marore, Indonesia, 69 km S of Sarangani, Davao Occidental, PhilippinesMore
Dec 8, 1984 14:54
37 years ago
5.4

191 km
91 km S of General Santos City, PhilippinesMore
Dec 5, 1984 01:02
37 years ago
4.7

186 km
24 km N of Pulau Marore Island, North Sulawesi, IndonesiaMore
Nov 26, 1984 21:16
38 years ago
5.2

201 km
82 km S of Glan, Sarangani, Soccsksargen, PhilippinesMore
Nov 22, 1984 18:12
38 years ago
4.7

202 km
30 km NW of Pulau Marore Island, North Sulawesi, IndonesiaMore
Nov 22, 1984 14:04
38 years ago
5.0

197 km
50 km S of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Nov 20, 1984 16:22
38 years ago
4.6

201 km
34 km S of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Nov 20, 1984 11:31
38 years ago
5.2

212 km
73 km S of Glan, Sarangani, Soccsksargen, PhilippinesMore
Nov 20, 1984 09:56
38 years ago
4.9

203 km
53 km S of Olanivan Island, Province of Davao del Sur, PhilippinesMore
Nov 20, 1984 09:10
38 years ago
4.3

199 km
Indonesia, 40 km S of Sarangani, Davao Occidental, PhilippinesMore
Nov 20, 1984 08:15
38 years ago
7.5

202 km
74 km S of Glan, Sarangani, Soccsksargen, PhilippinesMore
Oct 30, 1984 13:06
38 years ago
4.9

157 km
34 km NE of Olanivan Island, Province of Davao del Sur, PhilippinesMore

Earlier earthquakes in the same area

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