1913 Sulawesi–Mindanao earthquake
UTC time | 1913-03-14 08:45:05 |
---|---|
ISC event | 914043 |
USGS-ANSS | ComCat |
Local date | March 14, 1913 |
Magnitude | Mw 7.9 |
Depth | 15 km (9 mi) |
Epicenter | 5°32′38″N 125°53′28″E / 5.544°N 125.891°E |
Max. intensity | MMI IX (Violent) |
Casualties | 138 fatalities |
A Mw 7.9 earthquake struck offshore between Mindanao and Sulawesi on 14 March 1913.[1] It had a maximum Modified Mercalli intensity of IX (Violent). A majority of the 138 fatalities occurred on Sangihe Island attributed to a mudflow.
Earthquake
The Mw 7.9 mainshock was preceded by foreshocks.[2] The mainshock had a maximum Modified Mercalli intensity (MMI) of IX (Violent) in Davao and Sarangani. MMI VIII (Severe) was observed in Talacogon; MMI VII (Very strong) was observed in Cotabato, Baganga, Butuan, Cabadbaran and Tandag.[3]
Damage and casualties
Indonesia
On
At Menalu Bay, 1,000 m3 (35,000 cu ft) of material fell into the water from 80 m (260 ft) height. West of that, a mudflow traveled 1 km (0.62 mi) down from Endongo Hill, burying 117 villagers and 29 houses. The mudflow buried the area under 6 m (20 ft) of material. The mudflow dammed a river and overflowed. In Manganitu, bridges were washed away.[4]
On Siau Island, one person died and there were injuries. Ground fractures, avalanches and rockfalls occurred but there was no coastal subsidence. People were also unable to stand during shaking. Many brick buildings were ruined and some huts sank to one side. Similar environmental effects and damage occurred in the
Philippines
Shaking lasted half a minute on the
Volcanic eruption
The Straits Times and Malay Mail reported a volcanic eruption at Mount Awu. It occurred at the same time as the mudflow at Endongo Hill. A "tidal wave" 15 m (49 ft) high devastated the coastline. The eruption measured 2 on the Volcanic explosivity index.[5]
See also
References
- ^ ISC (June 27, 2022), ISC-GEM Global Instrumental Earthquake Catalogue (1904–2018), Version 9.1, International Seismological Centre
- ^ doi:10.7289/V5TD9V7K. Retrieved March 19, 2023.
- ISBN 974-8202-18-6.
- ^ a b c Soloviev, S. L.; Go, CH. N. (1984). Catalogue of tsunamis on the western shore of the Pacific Ocean (PDF) (Report). Nauka Publishing House, Moscow, USSR, Canadian Translation of Fisheries and Aquatic Sciences. pp. 272–273.
- doi:10.7289/V5JW8BSH. Retrieved March 19, 2023.
External links
- The International Seismological Centre has a bibliography and/or authoritative data for this event.