Massive 8.7 Magnitude Quake Off Russian Coast Triggers Tsunami Alerts for U.S. West Coast and Hawaii July 30, 2025 – Global Alert Desk A powerful magnitude 8.7 earthquake has struck off the eastern coast of Russia, marking the strongest seismic event on Earth since the devastating 2011 Tōhoku earthquake in Japan. Following the quake, tsunami simulators are now projecting wave scenarios that could impact the U.S. West Coast, Alaska, and Hawaii, prompting urgent warnings from global and national a