To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

1996 Sulawesi earthquake

From Wikipedia, the free encyclopedia

1996 North Sulawesi earthquake
UTC time1996-01-01 08:05:10
ISC event939295
Local dateJanuary 1, 1996
Local time16:05 CIT
Duration~30 seconds
Magnitude7.9 Mw
Depth24.0 km
Epicenter0°43′44″S 119°55′52″E / 0.729°S 119.931°E / -0.729; 119.931
FaultNorth Sulawesi Trench
Areas affectedSulawesi, Indonesia
Total damage$1.2M USD
Max. intensityVIII (Severe)
Tsunami2 to 4 meters
Casualties9 dead, 63 injured

On January 1, 1996, at 4:05 p.m. Central Indonesia Time, a powerful earthquake with an epicenter in the Makassar Strait struck north of Minahasa on the island of Sulawesi, Indonesia. The earthquake registered a magnitude 7.9 on the moment magnitude scale and was centered off Tolitoli Regency in Central Sulawesi, or 25 km from the Tonggolobibi village.[1] A tsunami of 2 to 4 meters was triggered by this earthquake as a result.[2] This event was larger but far less deadly compared to the Mw 7.5 Sulawesi earthquake in 2018 slightly south of where this earthquake occurred. At least 350 buildings were badly damaged, nine people were killed and 63 people injured.[3]

Tectonic setting

The North Sulawesi Trench is a subduction zone parallel to the Minahasa Peninsula where the Sunda Plate dives beneath the Molucca Sea Plate at a rate of 4 cm/yr. Here, three major tectonic plates, the Sunda, Australian and Philippine Sea Plates interact in a complex manner, broken up into several smaller microplates.[4] The North Sulawesi Subduction joins the Palu-Koro Fault at its westernmost tip.


The thrust fault which this earthquake occurred along had a very shallow dip angle of 7°, during the event, a 90 × 60 km section of it had ruptured. An average slip has been estimated at 1.8 meters. The earthquake took place along a relay zone between the North Sulawesi Trench and Palu-Koro Fault. The strike-slip component of this oblique-thrust event was a result of interaction with the Palu-Koro Fault. The rupture process took roughly 30 seconds.[5] On Pangalasean Island, uplift of 30 to 50 cm was determined.[5]
Two aftershocks in July, a magnitude 6.6 and 7.0 on the 16th and 22nd respectively about 50 km northeast of the January mainshock.[5]


The tsunami inundated more than 100 km of coastline along Northern Sulawesi between 5 to 10 minutes after the tremor.[6] The heights of these waves were between 1.6 to 3.4 meters, according to eyewitness.[5] More than 400 houses in the village of Tonggolobibi were destroyed when the waves swept through.
The water destroyed 183 houses and damaged 228 units around the Bangkir-Tolitoli area. About 100 km of coastline was affected, there were no reports of tsunami data being recorded outside of Sulawesi thus inferring that the tsunami was local. The wave penetrated up to 200 meters up riverbeds and carried five boats including two 500-ton motorboats 250 meters onshore. Since the tsunami occurred at a high tide of 59 cm, and there was a subsidence of the land of about 70 cm.[7]

See also


  1. ^ "M 7.9 - Minahasa, Sulawesi, Indonesia". USGS ANSS. Retrieved 27 November 2020.
  2. ^ "Tsunami Event Information". NCEI. Retrieved 27 November 2020.
  3. ^ "Significant Earthquake Information". NCEI. Retrieved 27 November 2020.
  4. ^ HAMILTON, WARREN (July 1973). "Tectonics of the Indonesian Region" (PDF). Geol. Soc. Malaysia, Bulletin 6.
  5. ^ a b c d J. M. Go´mez, R. Madariaga, A. Walpersdorf, and E. Chalard. "The 1996 Earthquakes in Sulawesi, Indonesia". Bulletin of the Seismological Society of America. 90.CS1 maint: multiple names: authors list (link)
  6. ^ Pelinovsky, E., Yuliadi, D., Prasetya, G. (1997). "The 1996 Sulawesi Tsunami". Natural Hazards. 16: 29–38. doi:10.1023/A:1007904610680.CS1 maint: multiple names: authors list (link)
  7. ^ "Tsunami Event Information". NCEI. Retrieved 27 November 2020.
This page was last edited on 17 January 2021, at 00:12
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.