January 20, 1917 Earthquake: Bali, Indonesia

Reference #414:

1917, January 21, 6:50 [local time], [January 20, 23:11:34 UTC; 7 S., 116 E., magnitude 6.6.]. There was an earthquake with source, according to the Wiechert seismograph at Djakarta (Batavia), southeast of Bali Island. On Bali Island, there were very strong regular horizontal oscillations, here and there accompanied by vertical shocks, which lasted 50 minutes [seconds?]. The force of tremors depended very much on ground conditions, but on the whole decreased markedly from the south coast of the island to the north coast. Bamboo huts on loose grounds on the south of the island collapsed; stone houses cracked and partly collapsed. There were numerous landslides and avalanches, which buried houses and people (about 80% of the total number of victims in the earthquake were due to avalanches). The earthquake was also very strong on Lombok Island, from Mataram to Selong, and weak on Sumbawa Island and on the east of Java Island (at Bondowoso, Djember and Kraksann). It was preceded by a foreshock, which was felt slightly at Denpasar on January 7, and was accompanied by a rather large number of aftershocks. A small tidal wave was observed on the southeastern shore of Bali Island from Klunkung to Benoa. The wave did no damage.

[20.I; 23h11m34s; 7o? S., 116o? E.; M=6.6]

Reference #1188:

January 21, 1917, MMI IX. Ground slumps and groundslides were observed at various places. Many houses suffered damage and about 1,500 people were killed due to groundslides.

Reference #1051:

Epicenter 8.3 S, 115 E, intensity IX, 1500 deaths.