Key Facts
• At 10:44 AM on August 21, an earthquake struck Tokyo.
• Maximum intensity of 3 observed in Toshima and Niijima villages.
• Epicenter located near Niijima and Kozushima offshore.
• Depth of epicenter estimated at approximately 20 km.
• Magnitude of the earthquake estimated at 4.7.
• No tsunami warnings issued following the earthquake.
• Intensity 2 recorded in Izu Oshima Town (Tokyo) and Higashiizu Town (Shizuoka).
• Intensity 1 recorded in Kozushima Village, Miyake Village (Tokyo), Izu City (Shizuoka), Tateyama City (Chiba), and Naka Ward, Yokohama (Kanagawa).
Summary
On August 21 at 10:44 AM, an earthquake with a magnitude of 4.7 struck Tokyo, with its epicenter near Niijima and Kozushima offshore at a depth of approximately 20 km. The maximum intensity of 3 was recorded in Toshima and Niijima villages. Other areas, including Izu Oshima Town and Higashiizu Town, experienced intensity 2, while intensity 1 was observed in several locations such as Kozushima Village and Yokohama’s Naka Ward. The Japan Meteorological Agency confirmed no tsunami risk. Updates will follow as new information becomes available.
