Incidents on 20 September 2025

M4.5 Earthquake — 85 km SSW of Severo-Kuril’sk, Russia 17:49 UTC · Russia · USGS Moderate M4.8 Earthquake — 77 km E of Petropavlovsk-Kamchatsky, Russia 17:09 UTC · Russia · USGS Moderate M4.6 Earthquake — Kermadec Islands region 16:56 UTC · Tonga · USGS Moderate M4.6 Earthquake — 88 km SE of Alo, Wallis and Futuna 16:39 UTC · Samoa · USGS Moderate M4.6 Earthquake — 157 km E of Petropavlovsk-Kamchatsky, Russia 16:36 UTC · Russia · USGS Moderate M4.5 Earthquake — 71 km SSW of San Pedro de Atacama, Chile 15:41 UTC · Chile · USGS Moderate M5.2 Earthquake — South Sandwich Islands region 15:31 UTC · USGS Moderate M4.5 Earthquake — 91 km E of Petropavlovsk-Kamchatsky, Russia 15:05 UTC · Russia · USGS Moderate M4.9 Earthquake — 92 km SSE of Panguna, Papua New Guinea 14:06 UTC · Solomon Islands · USGS Moderate M4.5 Earthquake — 152 km E of Petropavlovsk-Kamchatsky, Russia 14:06 UTC · Russia · USGS Moderate M4.5 Earthquake — 244 km E of Levuka, Fiji 13:50 UTC · Fiji · USGS Moderate M4.6 Earthquake — 133 km W of Castelo Branco, Portugal 12:30 UTC · Portugal · USGS Moderate M4.6 Earthquake — Volcano Islands, Japan region 11:23 UTC · Japan · USGS Moderate M5.1 Earthquake — 189 km SSE of Vilyuchinsk, Russia 10:18 UTC · Russia · USGS Moderate M4.6 Earthquake — 156 km E of Petropavlovsk-Kamchatsky, Russia 08:36 UTC · Russia · USGS Moderate M4.5 Earthquake — 154 km ESE of Petropavlovsk-Kamchatsky, Russia 08:04 UTC · Russia · USGS Moderate M4.6 Earthquake — 88 km W of Murghob, Tajikistan 07:46 UTC · Tajikistan · USGS Moderate M4.9 Earthquake — 177 km E of Petropavlovsk-Kamchatsky, Russia 07:39 UTC · Russia · USGS Moderate M5.1 Earthquake — South Sandwich Islands region 07:28 UTC · USGS Moderate M5.0 Earthquake — 187 km E of Petropavlovsk-Kamchatsky, Russia 06:56 UTC · Russia · USGS Moderate M4.9 Earthquake — 36 km WSW of Ambon, Indonesia 06:54 UTC · Indonesia · USGS Moderate M4.9 Earthquake — 64 km E of Yigo Village, Guam 06:49 UTC · Palau · USGS Moderate M4.7 Earthquake — 63 km SW of Atocha, Bolivia 05:55 UTC · Bolivia · USGS Moderate M4.8 Earthquake — 127 km SE of Miyakojima, Japan 04:46 UTC · Japan · USGS Moderate M4.8 Earthquake — 196 km E of Petropavlovsk-Kamchatsky, Russia 04:12 UTC · Russia · USGS Moderate M4.5 Earthquake — 138 km ESE of Petropavlovsk-Kamchatsky, Russia 04:07 UTC · Russia · USGS Moderate M5.1 Earthquake — 81 km E of Petropavlovsk-Kamchatsky, Russia 02:47 UTC · Russia · USGS Moderate M4.8 Earthquake — 237 km SE of Sarangani, Philippines 02:39 UTC · Philippines · USGS Moderate M4.6 Earthquake — south of Africa 02:14 UTC · USGS Moderate M5.0 Earthquake — 164 km ESE of Petropavlovsk-Kamchatsky, Russia 01:29 UTC · Russia · USGS Moderate M5.1 Earthquake — 264 km S of Severo-Kuril’sk, Russia 01:28 UTC · Russia · USGS Moderate M4.9 Earthquake — 246 km SSW of Severo-Kuril’sk, Russia 01:27 UTC · Russia · USGS Moderate M4.5 Earthquake — 214 km SE of Petropavlovsk-Kamchatsky, Russia 00:10 UTC · Russia · USGS Moderate M4.6 Earthquake — 126 km NE of Petropavlovsk-Kamchatsky, Russia 00:00 UTC · Russia · USGS Moderate M4.3 Earthquake — 168 km E of Petropavlovsk-Kamchatsky, Russia 23:30 UTC · Russia · USGS Minor M4.1 Earthquake — 37 km E of Camiña, Chile 23:23 UTC · Chile · USGS Minor M4.1 Earthquake — 15 km N of Simav, Turkey 23:16 UTC · Turkey · USGS Minor M4.4 Earthquake — 162 km SSE of Vilyuchinsk, Russia 21:47 UTC · Russia · USGS Minor M4.4 Earthquake — 14 km NE of Kuji, Japan 21:47 UTC · Japan · USGS Minor M2.8 Earthquake — 9 km SSW of Mariposa, CA 21:28 UTC · United States · USGS Minor M4.2 Earthquake — 4 km SSE of San Terenziano, Italy 21:11 UTC · Italy · USGS Minor M4.3 Earthquake — 162 km SE of Petropavlovsk-Kamchatsky, Russia 20:37 UTC · Russia · USGS Minor M4.2 Earthquake — 101 km SSE of Sand Point, Alaska 20:29 UTC · USGS Minor M3.6 Earthquake — 66 km SW of Nikolski, Alaska 20:01 UTC · USGS Minor M3.6 Earthquake — 140 km N of Isabela, Puerto Rico 19:45 UTC · Dominican Republic · USGS Minor M4.3 Earthquake — 135 km SSW of Tambilil, Philippines 18:54 UTC · Philippines · USGS Minor M3.3 Earthquake — 22 km SSW of Nixon, Texas 18:30 UTC · United States · USGS Minor M4.4 Earthquake — 163 km ESE of Petropavlovsk-Kamchatsky, Russia 16:56 UTC · Russia · USGS Minor M4.1 Earthquake — 16 km W of Cicurug, Indonesia 16:47 UTC · Indonesia · USGS Minor M4.2 Earthquake — 79 km E of Petropavlovsk-Kamchatsky, Russia 16:07 UTC · Russia · USGS Minor M4.3 Earthquake — 195 km N of Kavieng, Papua New Guinea 15:38 UTC · Papua New Guinea · USGS Minor M4.4 Earthquake — 163 km SSE of Alo, Wallis and Futuna 15:37 UTC · Samoa · USGS Minor M3.3 Earthquake — 51 km NNE of Venetie, Alaska 15:15 UTC · United States · USGS Minor M4.3 Earthquake — central Mid-Atlantic Ridge 14:44 UTC · Sierra Leone · USGS Minor M4.0 Earthquake — Mid-Indian Ridge 14:33 UTC · Mauritius · USGS Minor M2.7 Earthquake — 1 km SW of Indios, Puerto Rico 14:09 UTC · Dominican Republic · USGS Minor M4.0 Earthquake — 76 km S of Panguna, Papua New Guinea 14:02 UTC · Papua New Guinea · USGS Minor M4.4 Earthquake — 172 km ESE of Petropavlovsk-Kamchatsky, Russia 13:43 UTC · Russia · USGS Minor M3.8 Earthquake — 44 km NNE of Yigo Village, Guam 13:20 UTC · Palau · USGS Minor M4.4 Earthquake — 159 km ESE of Petropavlovsk-Kamchatsky, Russia 12:48 UTC · Russia · USGS Minor M4.0 Earthquake — 76 km E of Gualaquiza, Ecuador 12:46 UTC · Peru · USGS Minor M4.2 Earthquake — 72 km SE of Ozernovskiy, Russia 12:08 UTC · Russia · USGS Minor M4.3 Earthquake — 251 km E of Severo-Kuril’sk, Russia 09:46 UTC · Russia · USGS Minor M4.4 Earthquake — 249 km NE of Lospalos, Timor Leste 09:34 UTC · Timor-Leste · USGS Minor M4.3 Earthquake — 8 km WSW of Qingjiang, China 09:12 UTC · China · USGS Minor M4.2 Earthquake — 53 km SSE of Dazuocun, China 08:51 UTC · China · USGS Minor M2.6 Earthquake — 60 km W of Anchor Point, Alaska 08:44 UTC · USGS Minor M2.5 Earthquake — 16 km SE of Clam Gulch, Alaska 08:30 UTC · United States · USGS Minor M2.8 Earthquake — 10 km S of Santa Isabel, Puerto Rico 08:18 UTC · Saint Kitts and Nevis · USGS Minor M2.6 Earthquake — 25 km SSW of Segundo, Colorado 07:47 UTC · United States · USGS Minor M2.6 Earthquake — 10 km S of Santa Isabel, Puerto Rico 07:38 UTC · Saint Kitts and Nevis · USGS Minor M4.2 Earthquake — 145 km ESE of Petropavlovsk-Kamchatsky, Russia 07:16 UTC · Russia · USGS Minor M4.3 Earthquake — 75 km N of Khandūd, Afghanistan 07:10 UTC · Tajikistan · USGS Minor M4.4 Earthquake — 124 km NNE of Lae, Papua New Guinea 06:55 UTC · Papua New Guinea · USGS Minor M3.4 Earthquake — 52 km NE of Valmy, Nevada 06:47 UTC · United States · USGS Minor M4.4 Earthquake — 193 km ENE of Levuka, Fiji 06:41 UTC · Fiji · USGS Minor M2.6 Earthquake — 63 km ENE of Kodiak, Alaska 06:07 UTC · USGS Minor M4.3 Earthquake — 38 km E of Pondaguitan, Philippines 05:32 UTC · Philippines · USGS Minor M4.3 Earthquake — 7 km SSW of Kastrí, Greece 05:01 UTC · Greece · USGS Minor M3.3 Earthquake — 73 km W of Pole Ojea, Puerto Rico 04:59 UTC · Dominican Republic · USGS Minor M2.8 Earthquake — 9 km S of Santa Isabel, Puerto Rico 04:35 UTC · Saint Kitts and Nevis · USGS Minor M3.8 Earthquake — 101 km NNE of Cruz Bay, U.S. Virgin Islands 03:37 UTC · United States · USGS Minor M4.4 Earthquake — 86 km E of Petropavlovsk-Kamchatsky, Russia 02:22 UTC · Russia · USGS Minor M4.3 Earthquake — 117 km E of Petropavlovsk-Kamchatsky, Russia 02:13 UTC · Russia · USGS Minor M3.5 Earthquake — 71 km WNW of Happy Valley, Alaska 01:36 UTC · United States · USGS Minor M2.8 Earthquake — 54 km NE of Valmy, Nevada 01:28 UTC · United States · USGS Minor M4.4 Earthquake — 139 km ESE of Petropavlovsk-Kamchatsky, Russia 01:26 UTC · Russia · USGS Minor M2.5 Earthquake — 17 km E of Irwin, Idaho 00:53 UTC · United States · USGS Minor M4.3 Earthquake — 157 km ESE of Petropavlovsk-Kamchatsky, Russia 00:43 UTC · Russia · USGS Minor M2.6 Earthquake — 21 km SSE of Somes Bar, CA 00:13 UTC · United States · USGS Minor M4.4 Earthquake — 149 km ESE of Petropavlovsk-Kamchatsky, Russia 00:03 UTC · Russia · USGS Minor

2017 Hurricane Maria makes landfall in Puerto Rico as a powerful Category 4 hurricane, resulting in 2,975 deaths, US$90 billion in damage, and a major humanitarian crisis. 1971 Having weakened after making landfall in Nicaragua the previous day, Hurricane Irene regains enough strength to be renamed Hurricane Olivia, making it the first known hurricane to cross from the Atlantic Ocean into the Pacific. 1920 Irish War of Independence: British police known as "Black and Tans" burn the town of Balbriggan and kill two local men in revenge for an IRA assassination. 1498 The Nankai tsunami washes away the building housing the Great Buddha at Kōtoku-in; it has been located outside ever since.