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Asperities

All articles tagged with #asperities

science3 days ago•2 min saved

GPS Clues Pinpoint Likely Megathrust Quake Zones

UC Riverside researchers use a GPS-based method to measure tiny crust movements and identify locked fault segments (asperities) in subduction zones, revealing where a rupture is likely to occur. The approach narrowed down the rupture location for a Kamchatka megathrust quake in 2025, but cannot predict exact timing. The team plans to apply the method to other major zones (Japan, Mexico, New Zealand, Pacific Northwest) to improve disaster response, stressing that forecasting should supplement, not replace, public preparedness.

via Gizmodo|

#asperities #earthquake #gps

science6 days ago•52 min saved

Scientists pinpoint likely locations of major earthquakes, not the exact moment

UC Riverside researchers used GPS data and an algorithm to identify locked, stress-building portions of major faults (asperities) to indicate where the next large earthquake is likely to rupture. In tests, the model highlighted the Kamchatka subduction zone before the 2025 quake, suggesting potential for long-term hazard mapping, though it cannot predict timing or tsunami size; the team plans to apply the method to other subduction zones for improved preparedness.

via Yahoo|

#asperities #earthquakes #gps