Incidents on 17 September 2025

M4.6 Earthquake — 117 km SE of Old Harbor, Alaska 06:35 UTC · USGS Severe M4.5 Earthquake — 175 km S of Severo-Kuril’sk, Russia 22:08 UTC · Russia · USGS Moderate M5.4 Earthquake — 66 km SE of Petropavlovsk-Kamchatsky, Russia 20:57 UTC · Russia · USGS Moderate M4.5 Earthquake — 155 km SE of Atlasovo, Russia 16:45 UTC · Russia · USGS Moderate M4.5 Earthquake — South Sandwich Islands region 16:03 UTC · USGS Moderate M5.0 Earthquake — 206 km E of Petropavlovsk-Kamchatsky, Russia 14:46 UTC · Russia · USGS Moderate M4.6 Earthquake — 95 km SW of Kurio, Japan 13:27 UTC · Japan · USGS Moderate M4.6 Earthquake — 86 km N of Ambon, Indonesia 13:11 UTC · Indonesia · USGS Moderate M4.9 Earthquake — 107 km SW of Kurio, Japan 13:00 UTC · Japan · USGS Moderate M4.9 Earthquake — 104 km SW of Kurio, Japan 12:55 UTC · Japan · USGS Moderate M4.6 Earthquake — 105 km SW of Kurio, Japan 12:53 UTC · Japan · USGS Moderate M5.1 Earthquake — 79 km WNW of Isangel, Vanuatu 12:02 UTC · Vanuatu · USGS Moderate M4.7 Earthquake — 195 km SSE of Vilyuchinsk, Russia 06:38 UTC · Russia · USGS Moderate M4.0 Earthquake — 98 km ESE of Sarangani, Philippines 22:51 UTC · Philippines · USGS Minor M4.3 Earthquake — 63 km E of Grenville, Grenada 22:48 UTC · Grenada · USGS Minor M3.6 Earthquake — 48 km W of Mentone, Texas 21:56 UTC · United States · USGS Minor M2.8 Earthquake — 10 km SSE of Kapaau, Hawaii 21:10 UTC · United States · USGS Minor M4.2 Earthquake — 85 km WSW of Singkil, Indonesia 21:06 UTC · Indonesia · USGS Minor M2.6 Earthquake — 25 km ESE of Wright, Wyoming 20:57 UTC · United States · USGS Minor M2.7 Earthquake — 39 km WNW of Skwentna, Alaska 19:29 UTC · United States · USGS Minor M4.3 Earthquake — Pulau Pulau Tanimbar, Indonesia 19:21 UTC · Indonesia · USGS Minor M4.4 Earthquake — 80 km WSW of Jiquilillo, Nicaragua 19:09 UTC · Nicaragua · USGS Minor M4.3 Earthquake — 125 km E of Petropavlovsk-Kamchatsky, Russia 18:38 UTC · Russia · USGS Minor M2.7 Earthquake — 105 km S of McCarthy, Alaska 18:31 UTC · United States · USGS Minor M4.4 Earthquake — 6 km ENE of Cateel, Philippines 18:12 UTC · Philippines · USGS Minor M2.9 Earthquake — 52 km NE of Valmy, Nevada 18:01 UTC · United States · USGS Minor M2.5 Earthquake — 46 km S of Old Harbor, Alaska 17:28 UTC · USGS Minor M4.4 Earthquake — 42 km ESE of Ozernovskiy, Russia 16:35 UTC · Russia · USGS Minor M4.2 Earthquake — 207 km SSE of Vilyuchinsk, Russia 16:18 UTC · Russia · USGS Minor M4.3 Earthquake — 245 km ENE of Lospalos, Timor Leste 15:52 UTC · Timor-Leste · USGS Minor M4.2 Earthquake — 82 km W of Kandrian, Papua New Guinea 15:31 UTC · Papua New Guinea · USGS Minor M3.7 Earthquake — 52 km NE of Valmy, Nevada 14:57 UTC · United States · USGS Minor M3.3 Earthquake — 53 km NNE of Valmy, Nevada 14:14 UTC · United States · USGS Minor M4.4 Earthquake — 108 km SW of Jiquilillo, Nicaragua 13:37 UTC · Nicaragua · USGS Minor M4.4 Earthquake — 101 km SW of Jiquilillo, Nicaragua 13:27 UTC · Nicaragua · USGS Minor M4.1 Earthquake — 218 km ENE of Levuka, Fiji 12:14 UTC · Fiji · USGS Minor M2.5 Earthquake — 0 km WSW of Pāhala, Hawaii 11:40 UTC · United States · USGS Minor M4.1 Earthquake — 126 km S of Vilyuchinsk, Russia 10:57 UTC · Russia · USGS Minor M3.0 Earthquake — 114 km WSW of Hawaiian Ocean View, Hawaii 10:23 UTC · Kiribati · USGS Minor M3.3 Earthquake — 4 km WSW of Las Marías, Puerto Rico 10:09 UTC · Dominican Republic · USGS Minor M4.4 Earthquake — Kermadec Islands, New Zealand 09:32 UTC · New Zealand · USGS Minor M4.3 Earthquake — 87 km ESE of Manay, Philippines 08:43 UTC · Philippines · USGS Minor M3.2 Earthquake — 142 km SE of Old Harbor, Alaska 07:52 UTC · USGS Minor M4.2 Earthquake — 188 km E of Ozernovskiy, Russia 07:43 UTC · Russia · USGS Minor M3.0 Earthquake — 120 km SE of Old Harbor, Alaska 07:42 UTC · USGS Minor M4.0 Earthquake — 95 km SE of Ust’-Kamchatsk Staryy, Russia 07:37 UTC · Russia · USGS Minor M4.3 Earthquake — 85 km S of Severo-Kuril’sk, Russia 06:15 UTC · Russia · USGS Minor M2.9 Earthquake — 33 km WNW of Willow, Alaska 05:45 UTC · United States · USGS Minor M4.3 Earthquake — Celebes Sea 05:15 UTC · Brunei · USGS Minor M4.3 Earthquake — 17 km N of Lixoúri, Greece 04:56 UTC · Greece · USGS Minor M2.8 Earthquake — 9 km ESE of Ocotillo Wells, CA 04:46 UTC · United States · USGS Minor M2.6 Earthquake — 60 km NE of Valmy, Nevada 04:22 UTC · United States · USGS Minor M4.3 Earthquake — 7 km SSE of Basotu, Tanzania 04:17 UTC · Tanzania · USGS Minor M4.4 Earthquake — 19 km ENE of Jalālābād, Afghanistan 02:46 UTC · Afghanistan · USGS Minor M3.2 Earthquake — 231 km WSW of Adak, Alaska 01:13 UTC · USGS Minor M4.0 Earthquake — 37 km NE of Sūsangerd, Iran 00:23 UTC · Iran · USGS Minor

1928 The Okeechobee hurricane strikes southeastern Florida, killing more than 2,500 people. 1862 American Civil War: The Allegheny Arsenal explosion in Lawrenceville, Pennsylvania results in the single largest civilian disaster during the war.