scholarly journals Tsunami Source Inversion Using Tide Gauge and DART Tsunami Waveforms of the 2017 Mw8.2 Mexico Earthquake

2017 ◽  
Vol 175 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Bruno Adriano ◽  
Yushiro Fujii ◽  
Shunichi Koshimura ◽  
Erick Mas ◽  
Angel Ruiz-Angulo ◽  
...  
Keyword(s):  
Tide Gauge ◽  
Tsunami Source ◽  
Source Inversion ◽  
Tsunami Source Inversion ◽  
Tsunami Waveforms ◽  
Mexico Earthquake

scholarly journals Source modeling and spectral analysis of the Crete tsunami of 2nd May 2020 along the Hellenic Subduction Zone, offshore Greece

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Mohammad Heidarzadeh ◽  
Aditya Riadi Gusman
Keyword(s):  
Spectral Analysis ◽  
Tide Gauge ◽  
Eastern Mediterranean ◽  
Near Field ◽  
Tsunami Source ◽  
Source Inversion ◽  
Source Modeling ◽  
Crete Island ◽  
Tsunami Source Inversion ◽  
Wave Trains

AbstractTsunami hazard in the Eastern Mediterranean Basin (EMB) has attracted attention following three tsunamis in this basin since 2017 namely the July 2017 and October 2020 Turkey/Greece and the May 2020 offshore Crete Island (Greece) tsunamis. Unique behavior is seen from tsunamis in the EMB due to its comparatively small size and confined nature which causes several wave reflections and oscillations. Here, we studied the May 2020 event using sea level data and by applying spectral analysis, tsunami source inversion, and numerical modeling. The maximum tsunami zero-to-crest amplitudes were measured 15.2 cm and 6.5 cm at two near-field tide gauge stations installed in Ierapetra and Kasos ports (Greece), respectively. The dominant tsunami period band was 3.8–4.7 min. We developed a heterogeneous fault model having a maximum slip of 0.64 m and an average slip of 0.28 m. This model gives a seismic moment of 1.13 × 1019 Nm; equivalent to Mw 6.67. We observed three distinct wave trains on the wave record of the Ierapetra tide gauge: the first and the second wave trains carry waves with periods close to the source period of the tsunami, while the third train is made of a significantly-different period of 5–10 min.

scholarly journals Tsunami source inversion using time-derivative waveform of offshore pressure records to reduce effects of non-tsunami components

2018 ◽  
Vol 215 (2) ◽  
pp. 1200-1214 ◽  
Author(s):  
Tatsuya Kubota ◽  
Wataru Suzuki ◽  
Takeshi Nakamura ◽  
Naotaka Y Chikasada ◽  
Shin Aoi ◽  
...  
Keyword(s):  
Time Derivative ◽  
Tsunami Source ◽  
Source Inversion ◽  
Tsunami Source Inversion
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