1968 Sulawesi earthquake
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The 1968 Sulawesi earthquake struck
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gui ...
on August 14. It had a Richter magnitude of 7.4, spawned a large
tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater exp ...
, and killed roughly 200 people.


Damage and casualties

The earthquake had a Richter magnitude of 7.4. It created a
tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater exp ...
with wave heights of to , which soon traveled onto
Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu ...
. The most extensive waves reached inland, destroying 700 homes and killing around 200 people.


Geology

The earthquake ruptured along Palu-Koro fault in Manimbaja Bay. It caused
subsidence Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope mov ...
that decreased elevations by as much as to along the coast. It also appeared to
uplift Uplift may refer to: Science * Geologic uplift, a geological process ** Tectonic uplift, a geological process * Stellar uplift, the theoretical prospect of moving a stellar mass * Uplift mountains * Llano Uplift * Nemaha Uplift Business * Upli ...
at least one of the Togian Islands. The earthquake was near the
Celebes Sea The Celebes Sea, (; ms, Laut Sulawesi, id, Laut Sulawesi, fil, Dagat Selebes) or Sulawesi Sea, of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east b ...
; it sank the island of Tuguan.


See also

*
2018 Sulawesi earthquake and tsunami On 28 September 2018, a shallow, large earthquake struck in the neck of the Minahasa Peninsula, Indonesia, with its epicentre located in the mountainous Donggala Regency, Central Sulawesi. The magnitude 7.5 quake was located away from the ...
* List of earthquakes in 1968 *
List of earthquakes in Indonesia __NOTOC__ This is an incomplete list of more recent recorded major earthquakes that have occurred within the boundaries of Indonesia. The determinants of the activity are indicated by the geology of the region, and the volcanic activity. Large nu ...


References


External links

* 1968 tsunamis 1968 earthquakes 1968 in Indonesia 1968 disasters in Indonesia Earthquakes in Indonesia Tsunamis in Indonesia August 1968 events in Asia History of Sulawesi {{Asia-earthquake-stub