Tag: surface rupture
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Cebu Earthquake: Fault Finders, Knowledge Sharers, Enhanced Resilience
Cebu Earthquake: Tracing Surface Rupture and What It Means The magnitude 6.9 Cebu earthquake on September 30, 2025, left more than ground shaking—it exposed a surface rupture zone in northern Cebu. With a shallow focus of about 5 kilometers, geologists from the Philippine Institute of Volcanology and Seismology (Phivolcs) identified a new fault, later named…
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Cebu Earthquake: Fault Finders Sharpen Knowledge, Boost Resilience
Understanding the Cebu earthquake and its surface rupture The September 30, 2025 magnitude 6.9 earthquake in northern Cebu left more than shaking ground in its wake. A shallow focus of about 5 kilometers produced a surface rupture first observed by geologists from the Philippine Institute of Volcanology and Seismology (PHIVOLCS) in Nailon, near Bogo City.…
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Cebu Earthquake: Fault Finders, Knowledge Sharers, and Enhanced Resilience
Understanding Cebu’s Surface Rupture and the New Bogo Bay Fault When the September 30, 2025, magnitude 6.9 earthquake rattled Cebu, it didn’t just shake the ground; it revealed a surface rupture that geologists had anticipated but not fully mapped before. The initial rupture occurred near Nailon in Bogo City, exposing a new offshore-onland fault system…