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Korea Meteorological Administration's Tsunami Forecast and Early-warning System Improvements for Tsunami Preparedness

Description: 

Around Pacific Ocean is part of several seismic hotspots around the globe and there has been a lot of seismic activity around plate boundary as the 'Ring of Fire', could generated a massive Tsunami across the Pacific Ocean.
Korea Meteological Administration(KMA) need to establish Tsunami forecasting, early warning, monitoring and detection system for major Tsunami threat cause Korea peninsula is surrounded by water on three sides.
We already has Earthquake early-warning(EEW) system to forecast large earthquake and Tsunami and to pass produced Tsunami forecast information for maximum tsunami height and estimated arrival time each predicting stations.
An earthquake with magnitude of 6.0 or greater threat alert announced automatically through established scenario database(DB) system to minimizing property damage throught the issuance of timely, effective Tsunami warnings and threat messages.
And we can re-analysize real earthquake information based numerical Tsunami simulation using fault mechanism and analysed earthquake result. Using this results we produces more accurate expected arrival time, maximum Tsunami height and propagation map. While expanding the range of Tsunami numerical simulations from Northeast Asia to the global area, we can produce automatically large-scale of Tsunami forecast information(from Chile to Korea) is also predictable. Moreover Tsunami forecasting system can analysize Tsunami amplitude height over time to predict impact of 3,450 predicting stations in Korea and Japan coast.
KMA has been monitoring tidal wave using three type of ocean wave observation equipment(tide gauge, Coastal Disaster Prevention System, wave height meter). Also twenty-four seven fully operate real-time observation data based Tsunami monitoring and detection system. We estimate threshold sea level value each monitoring stations in detection system. Recently Hunga Tonga–Hunga Haʻapai eruption in 15 January 2022 generated mega Tsunami across Pacific ocean. We prove whether Tsunami reach by Tonga eruption some of southernmost station using Tsuami detection system.

Session: The Future of Tsunami Science, Preparedness and Response [Poster]

Type: Poster

Date: 4/19/2023

Presentation Time: 08:00 AM (local time)

Presenting Author: Hye-Won Lee

Student Presenter: No

Invited Presentation: 

Authors