Major magnitude 7.8 earthquake - 37 km west of Nusa Mawawo Island, Indonesia, on Wednesday, April 1, 1936 at 02:09 GMT
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Major magnitude 7.8 earthquake at 35 km depth
Earthquake details
| Date & time | Apr 1, 1936 02:09:28 UTC |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 7.8 |
| Depth | 35.0 km |
| Epicenter latitude / longitude | 4.241°N / 126.368°E  (Philippine Sea, Indonesia) |
| Antipode | 4.241°S / 53.632°W |
| Shaking intensity | Very strong shaking near epicenter |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | North Kawio (111 km / 69 mi) |
| Nearby towns and cities | 247 km (153 mi) SSE of General Santos City (Philippines) (pop: 679,600) | Show on map | Quakes nearby 257 km (159 mi) SSE of Maluñgun (Philippines) (pop: 52,200) | Show on map | Quakes nearby 263 km (164 mi) SE of Polomolok (Philippines) (pop: 64,000) | Show on map | Quakes nearby 334 km (207 mi) NW of Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) | Show on map | Quakes nearby 336 km (209 mi) NNE of Bitung (pop: 137,400) | Show on map | Quakes nearby 350 km (218 mi) NNE of Manado (pop: 451,900) | Show on map | Quakes nearby 364 km (226 mi) NNE of Tondano (Kabupaten Minahasa) (pop: 33,300) | Show on map | Quakes nearby 369 km (229 mi) NNE of Tomohon (pop: 27,600) | Show on map | Quakes nearby 400 km (249 mi) NNW of Ternate (pop: 101,700) | Show on map | Quakes nearby 412 km (256 mi) NNW of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) | Show on map | Quakes nearby |
| Estimated seismic energy released | 3.2 x 1016 joules (8784 gigawatt hours, equivalent to 7.6 x 106 tons of TNT or 472.4 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 |
| 7.8 | 35 km | Kepulauan Talaud, Indonesia | 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 (3 quakes)
Date and time | Mag Depth | Location | Details |
| Oct 5, 1936 09:44 86 years ago | 7.0 15 km | 131 km E of Bitung, North Sulawesi, Indonesia | More |
| Jul 5, 1936 18:55 86 years ago | 6.7 35 km | Philippines, 47 km NE of Pulau Mianggas Island, North Sulawesi, Indonesia | More |
| Apr 1, 1936 20:11 86 years ago | 6.6 35 km | Pulau Sara Kecil, 331 km NE of Manado, North Sulawesi, Indonesia | More |
Earlier earthquakes in the same area
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