Earthquakes on April 23, 2026
226
EARTHQUAKES on April 23, 2026
24-hour UTC period · USGS data
LARGEST: M5.2 — southern Mid-Atlantic Ridge
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
43
M3.0–3.9
8
M2.0–2.9
46
M1.0–1.9
125
Activity Summary
226
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.2
southern Mid-Atlantic Ridge
10:07 UTC · 10.0 km deep
5.2
121 km WNW of Houma, Tonga
06:31 UTC · 197.5 km deep
5.0
46 km N of Yigo Village, Guam
23:22 UTC · 150.9 km deep
Felt by 18
5.0
149 km E of Tatsugō, Japan
22:52 UTC · 10.0 km deep
4.9
South Indian Ocean
10:21 UTC · 10.0 km deep
4.9
South Sandwich Islands region
05:30 UTC · 10.0 km deep
4.9
186 km SSE of Vilyuchinsk, Russia
01:43 UTC · 10.0 km deep
4.8
south of the Kermadec Islands
17:46 UTC · 10.0 km deep
Earthquake Map — April 23, 2026
All Earthquakes — April 23, 2026
Showing 30 of 101 (filtered from 226)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-04-23 2026-04-23 23:22:32 UTC | 5.0mww | 46 km N of Yigo Village, Guam 13.954°, 144.925° | 150.9 km | 18 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 46 km N of Yigo Village, Guam with origin time 23:22 UTC on April 23, 2026. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:52:54 UTC | 5.0mww | 149 km E of Tatsugō, Japan 28.311°, 131.117° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 5.0 earthquake 149 km E of Tatsugō, Japan at 22:52 UTC. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:46:08 UTC | 2.4ml | 23 km E of Port Alsworth, Alaska 60.220°, -153.893° | 203.7 km | - | - | - | ✓ Reviewed | USGS → |
April 23, 2026 brought a magnitude 2.4 earthquake 23 km E of Port Alsworth, Alaska, logged at 22:46 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:34:59 UTC | 2.7ml | 51 km SE of Sand Point, Alaska 55.073°, -159.831° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 51 km SE of Sand Point, Alaska on April 23, 2026, with origin time 22:34 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:23:48 UTC | 3.0ml | 138 km SE of Akutan, Alaska 53.294°, -164.221° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 138 km SE of Akutan, Alaska with origin time 22:23 UTC on April 23, 2026. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:18:22 UTC | 4.4mb | 131 km ENE of Miyako, Japan 40.085°, 143.370° | 32.3 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026 at 22:18 UTC, a magnitude 4.4 earthquake struck 131 km ENE of Miyako, Japan. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:13:24 UTC | 4.6mb | 280 km ENE of Lospalos, Timor Leste -7.200°, 129.171° | 145.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 280 km ENE of Lospalos, Timor Leste with origin time 22:13 UTC on April 23, 2026. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 22:10:37 UTC | 4.0mb | Izu Islands, Japan region 29.811°, 138.788° | 417.9 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 4.0 earthquake in the Izu Islands, Japan region at 22:10 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 20:33:16 UTC | 2.0ml | 7 km ESE of Pearsall, Texas 28.854°, -99.027° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 7 km ESE of Pearsall, Texas at 20:33 UTC on April 23, 2026. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 20:32:18 UTC | 4.4mb | 40 km WNW of Colonia Dora, Argentina -28.415°, -63.307° | 570.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 40 km WNW of Colonia Dora, Argentina on April 23, 2026 at 20:32 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 20:24:10 UTC | 4.2mb | 144 km NNE of Tobelo, Indonesia 3.012°, 128.263° | 206.9 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026 at 20:24 UTC, a magnitude 4.2 earthquake struck 144 km NNE of Tobelo, Indonesia. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 20:21:03 UTC | 3.0ml | 69 km SE of King Cove, Alaska 54.658°, -161.491° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 3.0 earthquake 69 km SE of King Cove, Alaska at 20:21 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 19:37:30 UTC | 2.0ml | 43 km ESE of Pedro Bay, Alaska 59.667°, -153.366° | 132.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 43 km ESE of Pedro Bay, Alaska on April 23, 2026, with origin time 19:37 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 19:30:43 UTC | 2.1md | 1 km WNW of Cooter, Missouri 36.051°, -89.826° | 10.3 km | 6 | - | - | ✓ Reviewed | USGS → |
At 19:30 UTC on April 23, 2026, a magnitude 2.1 tremor occurred 1 km WNW of Cooter, Missouri. It arrived roughly 2 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 19:09:07 UTC | 2.3ml | 27 km SSW of False Pass, Alaska 54.617°, -163.544° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 27 km SSW of False Pass, Alaska with origin time 19:09 UTC on April 23, 2026. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 18:42:39 UTC | 3.0ml | 287 km W of Ferndale, California 40.611°, -127.659° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:42 UTC on April 23, 2026, a magnitude 3.0 tremor occurred 287 km W of Ferndale, California. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 18:35:45 UTC | 2.4ml | 68 km W of Nanwalek, Alaska 59.294°, -153.120° | 95.7 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026 at 18:35 UTC, a magnitude 2.4 earthquake struck 68 km W of Nanwalek, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 18:19:43 UTC | 4.2mb | south of the Fiji Islands -23.840°, -179.726° | 512.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded south of the Fiji Islands on April 23, 2026 at 18:19 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:59:04 UTC | 4.0mw | 1 km WNW of Cooter, Missouri 36.054°, -89.826° | 11.8 km | 913 | III | green | ✓ Reviewed | USGS → |
At 17:59 UTC on April 23, 2026, a magnitude 4.0 tremor occurred 1 km WNW of Cooter, Missouri. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:55:48 UTC | 4.0mb | 260 km E of Levuka, Fiji -17.905°, -178.231° | 649.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 260 km E of Levuka, Fiji at 17:55 UTC on April 23, 2026. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:49:11 UTC | 4.7mb | south of the Kermadec Islands -34.638°, -179.195° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026 at 17:49 UTC, a magnitude 4.7 earthquake struck south of the Kermadec Islands. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:46:15 UTC | 4.8mb | south of the Kermadec Islands -34.736°, -179.380° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake south of the Kermadec Islands came in on April 23, 2026 at 17:46 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:38:13 UTC | 2.3ml | 56 km NNW of Petersville, Alaska 62.939°, -151.294° | 114.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 56 km NNW of Petersville, Alaska at 17:38 UTC on April 23, 2026. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 17:25:26 UTC | 4.6mb | south of the Kermadec Islands -34.594°, -179.315° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 4.6 earthquake south of the Kermadec Islands at 17:25 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:56:57 UTC | 4.3mb | 109 km E of Miyako, Japan 39.831°, 143.190° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake 109 km E of Miyako, Japan at 16:56 UTC. Coming 17 hours after a magnitude 4.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:49:41 UTC | 4.6mb | Volcano Islands, Japan region 23.119°, 142.450° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 16:49 UTC on April 23, 2026, a magnitude 4.6 tremor occurred in the Volcano Islands, Japan region. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:44:56 UTC | 2.3md | 0 km SSW of Santa Isabel, Puerto Rico 17.964°, -66.406° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
On April 23, 2026, worldwide seismic activity registered a magnitude 2.3 earthquake 0 km SSW of Santa Isabel, Puerto Rico at 16:44 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:30:45 UTC | 2.7ml | 7 km NNE of Seldovia Village, Alaska 59.534°, -151.595° | 51.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 7 km NNE of Seldovia Village, Alaska came in on April 23, 2026 at 16:30 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:30:24 UTC | 4.2mb | 145 km S of Bambanglipuro, Indonesia -9.257°, 110.132° | 51.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 145 km S of Bambanglipuro, Indonesia with origin time 16:30 UTC on April 23, 2026. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-04-23 2026-04-23 16:27:47 UTC | 4.3mb | 145 km ESE of Kokopo, Papua New Guinea -4.607°, 153.555° | 118.4 km | - | - | - | ✓ Reviewed | USGS → |
At 16:27 UTC on April 23, 2026, a magnitude 4.3 tremor occurred 145 km ESE of Kokopo, Papua New Guinea. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
Legend:
Mag: Magnitude (magType = ml, mb, mw, etc.)
Felt: Number of DYFI felt reports
MMI: Modified Mercalli Intensity (I-X+)
Alert: PAGER alert level
Depth: Shallow (<70km), Intermediate, Deep (>300km)
Status: Auto = preliminary, Reviewed = verified by seismologist
Click any row to see additional technical details.
About This Page
This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on April 23, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.