SAN ANDREAS FAULT: TECTONIC TREMOR DETECTED DEEP BENEATH EARTH’S SURFACE RAISES RISK OF MASSIVE EARTHQUAKE

America’s most famous fault line, the San Andreas, is known for its frequent earthquakes, but one part of the system, the San Jacinto Fault zone, in inland Southern California, has been surprisingly quiet for the last 200 years. Now new research has detected small tremors deep under the fault system, suggesting it’s not as calm … Continue reading SAN ANDREAS FAULT: TECTONIC TREMOR DETECTED DEEP BENEATH EARTH’S SURFACE RAISES RISK OF MASSIVE EARTHQUAKE