Source link : https://asia-news.biz/asia/myanmar/the-mw7-7-myanmar-earthquake-unraveling-the-longest-continental-supershear-surface-rupture/
On August 24, 2023, Myanmar was rocked by a powerful magnitude 7.7 earthquake, marking one of the most significant seismic events in the region’s recent history. Scientists have now revealed that this quake was not only extraordinary in strength but also notable for its unique rupture characteristics. Detailed analyses show that the earthquake produced the longest continuous surface rupture ever recorded on a continental fault, accompanied by a rare supershear cascading rupture-a phenomenon where the earthquake rupture propagates faster than the shear wave velocity in the crust. This groundbreaking discovery, published in Nature, sheds new light on the complex mechanics of continental earthquakes and has significant implications for seismic hazard assessment in Myanmar and beyond.
Mw7.7 Myanmar Earthquake Reveals Unprecedented Continental Surface Rupture
The recent seismic event in Myanmar has stunned the geological community with its record-breaking surface rupture, marking the longest continental rupture ever documented in a supershear earthquake sequence. Researchers mapped an extensive fault line that propagated over 150 kilometers, far surpassing previously known ruptures in the region. This cascading failure unleashed an intense release of energy, contributing to unprecedented ground displacement and subsequent hazard potential across multiple fault segments. Satellite imagery and field surveys confirm that the rupture did not behave as a singular fault…
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Author : Ethan Riley
Publish date : 2025-09-05 17:51:00
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