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Greg Cocks @GregCocks@techhub.social

Japan Issues First ‘Megaquake’ Warning For Nankai Trough After Strong Earthquake Hits Miyazaki [August 8th 2024]
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https://www.nzherald.co.nz/world/japan-issues-first-megaquake-warning-for-nankai-trough-after-strong-earthquake-hits-miyazaki/FPL7SAYODZGAXC6TGMJEXOC5TE/ <-- shared media article
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https://earthquakeinsights.substack.com/p/m71-earthquake-strikes-southern-japan <-- shared Earthquake Insights details page
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#GIS #spatial #mapping #operationalearthquakeforecast #OEP #japan #NankaiTrough #megaquake #earthquake #Miyazaki #risk #hazard #model #modeling #fault #faulting #geology #engineeringgeology #structuralgeology #earthquakehazard #infrastructure #humanimpacts

Miyazaki Earthquake - schematic / graphic overview

Map of the Nankai Trough showing locations where geological evidence of great earthquakes has been identified. Right: list of known great earthquakes on the Nankai Trough. Source: Figure 1 of Garrett et al. (2016).

Seismicity around the M7.1 earthquake in map view and cross-section. Curved line in the cross-section is subduction interface model from slab2.0. Earthquakes are from the JMA catalog; focal mechanisms are from EMSC/GCMT/GFZ/ISC.

Left: Map showing the age of the ocean floor. Arrows show plate motion relative to southern Japan, in mm/yr. Black rectangle is location of figure on the right; black circles show earthquakes <100 km deep and red star is the recent M7.2.

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