1983 Kaoiki earthquake

1983 Kaoiki earthquake
1983 Kaoiki earthquake is located in Hawaii
Hilo
Hilo
Honolulu
Honolulu
1983 Kaoiki earthquake
UTC time1983-11-16 16:13:00
ISC event565031
USGS-ANSSComCat
Local dateNovember 16, 1983
Local time06:13:00 (UTC-10)
Magnitude6.7 Mw
Depth12 km (7 mi)
Epicenter19°25′34″N 155°27′00″W / 19.426°N 155.450°W / 19.426; -155.450
FaultKaoiki Fault
TypeRight-lateral Strike-slip
Areas affectedHawaii
Total damage$6-7 million (1983 rate)
Max. intensityMMI IX (Violent)
Peak acceleration0.67 g
Landslidesyes
Aftershocks>800 aftershocks by the end of November 1983
Casualties6 injuries

The 1983 Kaoiki earthquake struck southern Hawaii Island on the morning of November 16, 1983. Measuring Mw  6.7, it was the largest to hit the island since 1975. The epicenter was located 50 km (30 mi) southeast of Hilo with an approximated depth of 12 km (7 mi). The shallow strike-slip earthquake was assigned a maximum intensity of IX (Violent) on the Modified Mercalli scale. 6 people were injured, widespread damage and landslides were reported across the island.