Coseismic displacements on Ischia island, real-time GPS positioning constraints on earthquake source location

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Roberto Devoti
https://orcid.org/0000-0002-0037-0074
Prospero De Martino
Grazia Pietrantonio
Mario Dolce

Abstract

We use GNSS data to simulate the early seismic source location of a M 4 event occurred in the island of Ischia, Italy. The study suggests that real-time GNSS data can support the seismic location system in the early stage of the emergency phase. We demonstrate that this very shallow earthquake, triggered significant displacements at a few stations in less than half an hour. Using exclusively GPS data, the first location of the hypocenter was possible with a latency of only 20 minutes. Early upgrades of the offset field in the first two hours confirm the source location confined within 1-2 km in the horizontal plane and less than 1 km depth.

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How to Cite
1.
Devoti R, De Martino P, Pietrantonio G, Dolce M. Coseismic displacements on Ischia island, real-time GPS positioning constraints on earthquake source location. Ann. Geophys. [Internet]. 2018Jul.27 [cited 2022Jun.29];61(3):SE337. Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/7656
Section
Seismology

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