Key Facts
• July 30 (JST): Tsunami reaches northern California, confirmed by U.S. weather authorities.
• Origin: Magnitude 8.8 earthquake off Russia’s Kamchatka Peninsula earlier that morning.
• Observed at Arena Cove, north of San Francisco, moving south along the coast.
• Tsunami also recorded in Russia, Japan, and Hawaii due to the same earthquake.
Summary
A tsunami, triggered by a magnitude 8.8 earthquake off Russia’s Kamchatka Peninsula, reached northern California on July 30 (JST). U.S. weather authorities confirmed its arrival at Arena Cove, north of San Francisco, with the wave moving southward along the coast. The earthquake, which occurred earlier that morning, also caused tsunamis in Russia, Japan, and Hawaii. Authorities continue to monitor the situation.
