A large deep Hawaiian earthquake - the Honomu, Hawaii event of April 26, 1973

Author:

Unger, John D., Ward, Peter L.

Title:

A large deep Hawaiian earthquake - the Honomu, Hawaii event of April 26, 1973

Periodical:

Bulletin of the Seismological Society of America

Year:

1979

Volume:

69

Pages:

1771-1781

Subject:

Earthquakes Hawaii Island

Summary:

This document describes the largest subcrustal earthquake that was ever recorded from the Hawaiian Island chain. This earthquake occurred at a magnitude of 6.2 and at a depth of 48 km on April 26, 1973 from which 57 aftershocks were recorded following the main shock. The proximity of the Hawaiian Volcano Observatory's extensive seismograph network and the knowledge of the crustal and upper mantle structure beneath the island made it possible to calculate accurate hypocenters for both the main shock and the aftershocks. Eleven people were injured during this earthquake and the damage caused was estimated to be approximately $5.6 million dollars with most of the structural damage occurring in the city of Hilo. While this earthquake provided scientists with the opportunity to learn more about the structure and tectonics of Hawaii, it has also left scientists with many unanswered questions.

Label:

Geology

Collection:

Periodicals