Categorized | Earthquake, News

Morning 4.5 magnitude quake in North Hawaii felt islandwide and on Maui


View M4.5 – 12km WNW of Waimea, Hawaii – 2014-08-07 16:24:04 UTC in a larger map

Magnitude
4.5

Event Time
2014-08-07 16:24:04 UTC
2014-08-07 06:24:04 UTC-10:00 at epicenter
2014-08-07 06:24:04 HST

Location
20.079°N 155.793°W depth=16.8km (10.4mi)

Nearby Cities
12km (7mi) WNW of Waimea, Hawaii
51km (32mi) NNE of Kailua-Kona, Hawaii
81km (50mi) WNW of Hilo, Hawaii
99km (62mi) WNW of Hawaiian Paradise Park, Hawaii
256km (159mi) ESE of Honolulu, Hawaii

An earthquake of 4.5 magnitude struck North Hawaii at 6:24 a.m. Thursday (Aug 7). There were no reports of damage. According to the USGS website the quake was felt islandwide with reports from Waimea, Honokaa, Kona, Hilo, Kahuku and four reports from Maui.

USGS: How large does an earthquake have to be to cause a tsunami?

Magnitudes below 6.5
Earthquakes of this magnitude are very unlikely to trigger a tsunami.

Magnitudes between 6.5 and 7.5
Earthquakes of this size do not usually produce destructive tsunamis. However, small sea level changes may be observed in the vicinity of the epicenter. Tsunamis capable of producing damage or casualties are rare in this magnitude range but have occurred due to secondary effects such as landslides or submarine slumps.

Magnitudes between 7.6 and 7.8
Earthquakes of this size may produce destructive tsunamis especially near the epicenter; at greater distances small sea level changes may be observed. Tsunamis capable of producing damage at great distances are rare in the magnitude range.

Magnitude 7.9 and greater
Destructive local tsunamis are possible near the epicenter, and significant sea level changes and damage may occur in a broader region.

Note that with a magnitude 9.0 earthquake, the probability of an aftershock with a magnitude exceeding 7.5 is not negligible. To date, the largest aftershock recorded has been magnitude 7.1 that did not produce a damaging tsunami.

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