Strong mag. 6.6 earthquake - 50 km southeast of Alabel, Sarangani, Soccsksargen, Philippines, on Monday, October 29, 1984 at 23:18 GMT
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes here | Quakes in the Philippines | Davao | Soccsksargen | Mindanao Musulman
Strong magnitude 6.6 earthquake at 153 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
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
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. | Depth | Location | Source |
| 6.6 | 153 km | Mindanao, Philippines | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
[More info]
Recorded aftershocks, latest first (27 quakes)
Date and time | Mag Depth | Location | Details |
| Apr 8, 1985 03:34 37 years ago | 4.7 33 km | Pulau Baronto, 171 km S of Mati, Province of Davao Oriental, Philippines | More |
| Mar 15, 1985 19:28 37 years ago | 3.6 165 km | 64 km SE of Sigaboy Island, Province of Davao Oriental, Philippines | More |
| Mar 7, 1985 11:19 37 years ago | 5.9 92 km | 126 km S of Mati, Province of Davao Oriental, Philippines | More |
| Mar 6, 1985 06:10 37 years ago | 4.5 143 km | Philippines, 28 km W of Pulau Baronto Island, Indonesia | More |
| Mar 4, 1985 09:32 37 years ago | 5.2 206 km | 83 km S of Glan, Sarangani, Soccsksargen, Philippines | More |
| Feb 23, 1985 01:01 37 years ago | 5.4 163 km | 21 km W of Sigaboy Island, Province of Davao Oriental, Philippines | More |
| Feb 20, 1985 09:03 37 years ago | 4.2 99 km | 32 km SE of Sigaboy Island, Province of Davao Oriental, Philippines | More |
| Feb 16, 1985 22:27 37 years ago | 5.0 203 km | 32 km NW of Pulau Kawio Island, North Sulawesi, Indonesia | More |
| Feb 15, 1985 08:59 37 years ago | 4.9 70 km | 82 km E of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Jan 29, 1985 16:33 37 years ago | 3.7 165 km | 45 km NW of Pulau Kawio Island, North Sulawesi, Indonesia | More |
| Jan 6, 1985 18:26 37 years ago | 5.1 157 km | 77 km E of Alabel, Sarangani, Soccsksargen, Philippines | More |
| Jan 1, 1985 04:04 37 years ago | 4.5 84 km | 82 km E of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Dec 29, 1984 20:32 37 years ago | 4.3 197 km | Indonesia, 39 km S of Sarangani, Davao Occidental, Philippines | More |
| Dec 29, 1984 14:26 37 years ago | 4.8 218 km | 39 km S of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Dec 18, 1984 16:57 37 years ago | 5.1 139 km | 81 km E of Alabel, Sarangani, Soccsksargen, Philippines | More |
| Dec 10, 1984 03:16 37 years ago | 4.7 179 km | Pulau Marore, Indonesia, 69 km S of Sarangani, Davao Occidental, Philippines | More |
| Dec 8, 1984 14:54 37 years ago | 5.4 191 km | 91 km S of General Santos City, Philippines | More |
| Dec 5, 1984 01:02 37 years ago | 4.7 186 km | 24 km N of Pulau Marore Island, North Sulawesi, Indonesia | More |
| Nov 26, 1984 21:16 38 years ago | 5.2 201 km | 82 km S of Glan, Sarangani, Soccsksargen, Philippines | More |
| Nov 22, 1984 18:12 38 years ago | 4.7 202 km | 30 km NW of Pulau Marore Island, North Sulawesi, Indonesia | More |
| Nov 22, 1984 14:04 38 years ago | 5.0 197 km | 50 km S of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Nov 20, 1984 16:22 38 years ago | 4.6 201 km | 34 km S of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Nov 20, 1984 11:31 38 years ago | 5.2 212 km | 73 km S of Glan, Sarangani, Soccsksargen, Philippines | More |
| Nov 20, 1984 09:56 38 years ago | 4.9 203 km | 53 km S of Olanivan Island, Province of Davao del Sur, Philippines | More |
| Nov 20, 1984 09:10 38 years ago | 4.3 199 km | Indonesia, 40 km S of Sarangani, Davao Occidental, Philippines | More |
| Nov 20, 1984 08:15 38 years ago | 7.5 202 km | 74 km S of Glan, Sarangani, Soccsksargen, Philippines | More |
| Oct 30, 1984 13:06 38 years ago | 4.9 157 km | 34 km NE of Olanivan Island, Province of Davao del Sur, Philippines | More |
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