Between 2026-09-18 and 2026-09-20, four earthquakes ranging from magnitude 4.6 to 5.3 were recorded by USGS: M4.6 near Tsunō, Japan on 2026-09-18; M5.2 and M5.3 along the Reykjanes Ridge on 2026-09-19 and 2026-09-20 respectively; and M4.9 west of Hihifo, Tonga on 2026-09-20. All occurred at shallow to moderate depths with no reported casualties.
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Time 2026-09-18 01:07:30 UTC 2026-09-18 01:07:30 UTC at epicenter Location 32.162 N 131.754 E Depth 53.95 km (33.52 mi)
New # earthquake detected: M 4.6 - 20 km ESE of Tsunō, # Japan 2026/09/18, 01:07:30 UTC GPS: 32.1616, 131.7540 Depth: 53.945 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000ti70
Earthquake M4.6 🇯🇵 - Japan 20 km ESE of Tsunō Depth: 53.9 km - Sep 18, 2026, 1:07 AM UTC Earthquake details: https://terremoto.developers.do/earthquakes/us7000ti70?utm_source=bluesky&utm_medium=social Depth 53.9 km · Sep 18, 2026, 1:07 AM UTC · Map, coordinates, and official USGS source.
New # earthquake detected: M 4.5 - 112 km ESE of Ust’-Kamchatsk Staryy, # Russia 2026/09/18, 19:16:37 UTC GPS: 55.7503, 164.0620 Depth: 30.943 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tiem
New # earthquake detected: M 5.5 - Kermadec Islands region 2026/09/18, 23:18:28 UTC GPS: -27.8581, -177.2286 Depth: 94.054 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tigd
Time 2026-09-19 07:08:23 UTC 2026-09-19 07:08:23 UTC at epicenter Location 30.167 N 131.190 E Depth 38.54 km (23.95 mi)
New # earthquake detected: M 5.0 - South Sandwich Islands region 2026/09/19, 09:59:59 UTC GPS: -55.6255, -28.1116 Depth: 77.621 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tiis
New # earthquake detected: M 4.6 - 25 km NW of Ushibukamachi, # Japan 2026/09/19, 12:07:12 UTC GPS: 32.3799, 129.8568 Depth: 10.000 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tijd
New # earthquake detected: M 4.8 - 29 km WSW of Sipí, # Colombia 2026/09/19, 13:44:35 UTC GPS: 4.5179, -76.8729 Depth: 58.204 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tijs
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New # earthquake detected: M 5.1 - 67 km NE of Ruteng, # Indonesia 2026/09/19, 13:56:00 UTC GPS: -8.1668, 120.8819 Depth: 10.000 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tiju
New # earthquake detected: M 5.2 - Reykjanes Ridge 2026/09/19, 20:24:42 UTC GPS: 57.1175, -33.4247 Depth: 10.000 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000tild
New # earthquake detected: M 4.9 - 85 km W of Hihifo, # Tonga 2026/09/20, 00:33:21 UTC GPS: -15.9606, -174.5971 Depth: 10.000 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000timw
New # earthquake detected: M 5.3 - Reykjanes Ridge 2026/09/20, 00:58:14 UTC GPS: 57.1211, -33.5459 Depth: 10.000 km 🔗 https:// earthquake.usgs.gov/earthquake s/eventpage/us7000timy