AI Article Synopsis
- A study by Indonesia's BMKG identified seismic gaps south of Java, indicating areas that could produce major earthquakes in the future.
- Tsunami models predict that if major segments of the megathrust fault rupture simultaneously, waves could reach heights of up to 20 meters on West Java's coast.
- These findings emphasize the need to enhance Indonesia's Tsunami Early Warning System (InaTEWS), particularly to protect the densely populated region of Java.
Article Abstract
Relocation of earthquakes recorded by the agency for meteorology, climatology and geophysics (BMKG) in Indonesia and inversions of global positioning system (GPS) data reveal clear seismic gaps to the south of the island of Java. These gaps may be related to potential sources of future megathrust earthquakes in the region. To assess the expected inundation hazard, tsunami modeling was conducted based on several scenarios involving large tsunamigenic earthquakes generated by ruptures along segments of the megathrust south of Java. The worst-case scenario, in which the two megathrust segments spanning Java rupture simultaneously, shows that tsunami heights can reach ~ 20 m and ~ 12 m on the south coast of West and East Java, respectively, with an average maximum height of 4.5 m along the entire south coast of Java. These results support recent calls for a strengthening of the existing Indonesian Tsunami Early Warning System (InaTEWS), especially in Java, the most densely populated island in Indonesia.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7499206 | PMC |
| http://dx.doi.org/10.1038/s41598-020-72142-z | DOI Listing |
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