Tag

Seismic Hazard

All articles tagged with #seismic hazard

science2 days ago•3 min saved

Utah’s Hidden Mantle Quakes Signal a New Deep‑Earth Tremor Class

Researchers have identified a new class of deep, mantle-origin earthquakes in Utah—bursts that occur far below the surface, often with little or no felt shaking—starting from the 1979 Randolph event. By linking several deep events (nine documented cases and a 2025 Utah quake), scientists suggest these quakes nucleate at great depths near the Wyoming Craton, behaving like high‑temperature, viscous molten material. While surface damage is typically low, understanding these mantle quakes is crucial for evaluating seismic hazard and limits of potential magnitudes.

via Gizmodo|

#deep-earthquakes #mantle-earthquakes #science

science7 months ago•3 min saved

Scientists Warn of Devastating Supershear Earthquakes Threatening California

Scientists warn that California faces a significant risk from rare but powerful 'supershear' earthquakes that move faster than seismic waves, potentially causing more widespread and intense shaking. They emphasize the need for updated building standards, enhanced monitoring, and advanced simulations to better prepare for these destructive events, which could occur multiple times in the coming decades.

via SciTechDaily|

#building-codes #california #earthquakes

science9 months ago•3 min saved

Potential New Earthquake Hotspot and Tectonic Insights Beneath the Atlantic and Portugal

A new study suggests a tectonic fault may be forming beneath the Atlantic Ocean due to mantle delamination, potentially creating a new subduction zone and increasing the risk of powerful earthquakes and tsunamis in the region, highlighting the need for preparedness.

via BBC Science Focus Magazine|

#atlantic-ocean #earthquake #science

science9 months ago•3 min saved

California's Next Major Earthquake May Defy Expectations, Study Warns

A recent study using satellite imagery of Myanmar's Sagaing Fault suggests that future earthquakes on similar strike-slip faults, like California's San Andreas Fault, could be larger and more unpredictable than past events, emphasizing the need for updated, physics-based seismic models for better hazard prediction.

via Gizmodo|

#earthquake #myanmar #sagaing-fault

science9 months ago•3 min saved

Reevaluating Earthquake Risks and Predictions in California and Myanmar

Recent research suggests that future earthquakes on the San Andreas Fault may not follow past patterns, as exemplified by the unexpected rupture length of the Myanmar earthquake, indicating that current seismic models need to incorporate fault activity history for more accurate predictions.

via IFLScience|

#earthquake #fault-modeling #myanmar-earthquake

science10 months ago•3 min saved

Canadian Fault Line Awakening Raises Earthquake Concerns

A new study suggests the Tintina fault in Yukon, Canada, which was previously considered inactive for 40 million years, has produced recent large earthquakes and could potentially generate a major quake exceeding magnitude 7.5, prompting a reassessment of seismic risks in northwestern Canada.

via Gizmodo|

#canada #earthquake #fault

science10 months ago•2 min saved

Potential Major Earthquake Threatens Canada as Ancient Fault Reactivates

A new study suggests that the dormant Tintina fault in northern Canada, which hasn't seen a major earthquake in over 12,000 years, may be building up pressure and could potentially trigger a significant quake of magnitude 7.5 or higher, posing a seismic risk to nearby communities like Dawson City.

via ScienceAlert|

#canada #earthquake #fault-line

science10 months ago•2 min saved

Dormant Canadian Fault Line Poses Major Earthquake Threat

A new study reveals that the Tintina fault along the Canadian border, previously thought dormant for millions of years, shows signs of recent activity and could generate a major earthquake of magnitude 7.5 or higher, posing a significant seismic risk to the region.

via The Independent|

#canadian-border #earthquake #fault-line

science10 months ago•3 min saved

Scientists Discover Hidden Massive Earthquake Threat

Scientists have identified the previously overlooked Tintina Fault beneath North America as a significant seismic threat, potentially capable of producing a magnitude 7.5 or greater earthquake, which could impact communities and infrastructure across Alaska and Canada. The fault has been quietly accumulating stress over thousands of years, with evidence of past large ruptures, yet it remains largely unmonitored and absent from hazard models, raising concerns about preparedness and risk mitigation.

via The Daily Galaxy|

#alaska #earthquake #fault-line