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Earthquakes on April 23, 2026

218
EARTHQUAKES on April 23, 2026
24-hour UTC period · USGS data
10 km deep
Normal activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
4
M4.0–4.9
35
M3.0–3.9
8
M2.0–2.9
46
M1.0–1.9
125

Activity Summary

218
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events

Geographic Breakdown

Top Countries (International)

Earthquake Map — April 23, 2026

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — April 23, 2026

Showing 30 of 93 (filtered from 218)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2026-04-23
2026-04-23 23:22:32 UTC
5.0mww
44 km N of Yigo Village, Guam
13.942°, 144.902°
155.8 km18--✓ ReviewedUSGS →
Seismographs logged a magnitude 5.0 earthquake 44 km N of Yigo Village, Guam with origin time 23:22 UTC on April 23, 2026. The event generated 18 citizen felt reports to the USGS. It ranks as the third largest event in the current dataset. The event originated approximately 155.8 km below the surface, classifying it as intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: 13.942°, 144.902°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
On April 23, 2026, worldwide seismic activity registered a magnitude 5.0 earthquake 149 km E of Tatsugō, Japan at 22:52 UTC. It ranks as the fourth largest event in the current dataset. This was a shallow crustal earthquake, focused at 10.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 28.311°, 131.117°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 2.4 earthquake was recorded 23 km E of Port Alsworth, Alaska on April 23, 2026 at 22:46 UTC. At a depth of 203.7 km, the event was intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at 60.220°N, -153.893°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 2.7 seismic event took place 51 km SE of Sand Point, Alaska on April 23, 2026 at 22:34 UTC. The hypocenter lay at 6.3 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 55.073°, -159.831°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
At 22:23 UTC on April 23, 2026, a magnitude 3.0 tremor occurred 138 km SE of Akutan, Alaska. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 53.294°, -164.221°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Reports of a magnitude 4.4 earthquake 131 km ENE of Miyako, Japan came in on April 23, 2026 at 22:18 UTC. At a depth of 32.3 km, the event was shallow crustal. Coordinates: 40.085°, 143.370°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 4.6 earthquake was recorded 280 km ENE of Lospalos, Timor Leste on April 23, 2026 at 22:13 UTC. This was a intermediate depth earthquake, focused at 145.3 km depth. Coordinates: -7.200°, 129.171°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
This magnitude 4.0 event was detected in the Izu Islands, Japan region on April 23, 2026, with origin time 22:10 UTC. At 417.9 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. The epicenter is at 29.811°, 138.788°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Reports of a magnitude 2.0 earthquake 7 km ESE of Pearsall, Texas came in on April 23, 2026 at 20:33 UTC. This was a shallow crustal earthquake, focused at 5.9 km depth. The epicenter is at 28.854°, -99.027°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 4.4 seismic event took place 40 km WNW of Colonia Dora, Argentina on April 23, 2026 at 20:32 UTC. At 570.6 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. The epicenter is at -28.415°, -63.307°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
This magnitude 4.2 event was detected 144 km NNE of Tobelo, Indonesia on April 23, 2026, with origin time 20:24 UTC. The event originated approximately 206.9 km below the surface, classifying it as intermediate depth. Coordinates: 3.012°, 128.263°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
The USGS recorded this magnitude 3.0 earthquake 69 km SE of King Cove, Alaska at 20:21 UTC on April 23, 2026. At a depth of 35.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 54.658°, -161.491°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 2.0 seismic event took place 43 km ESE of Pedro Bay, Alaska on April 23, 2026 at 19:37 UTC. The hypocenter lay at 132.3 km, placing this in the intermediate depth category. Geolocation places the event at 59.667°N, -153.366°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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 km6--✓ ReviewedUSGS →
This magnitude 2.1 event was detected 1 km WNW of Cooter, Missouri on April 23, 2026, with origin time 19:30 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 2 hours earlier. A small number of nearby observers (6) submitted felt reports to the USGS. The hypocenter lay at 10.3 km, placing this in the shallow crustal category. Geolocation places the event at 36.051°N, -89.826°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
At 19:09 UTC on April 23, 2026, a magnitude 2.3 tremor occurred 27 km SSW of False Pass, Alaska. The hypocenter lay at 8.0 km, placing this in the shallow crustal category. Geolocation places the event at 54.617°N, -163.544°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
This magnitude 3.0 event was detected 287 km W of Ferndale, California on April 23, 2026, with origin time 18:42 UTC. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 40.611°N, -127.659°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.4 earthquake 68 km W of Nanwalek, Alaska with origin time 18:35 UTC on April 23, 2026. The event originated approximately 95.7 km below the surface, classifying it as intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: 59.294°, -153.120°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Reports of a magnitude 4.2 earthquake south of the Fiji Islands came in on April 23, 2026 at 18:19 UTC. At 512.3 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. The epicenter is at -23.840°, -179.726°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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 km913IIIgreen✓ ReviewedUSGS →
Reports of a magnitude 4.0 earthquake 1 km WNW of Cooter, Missouri came in on April 23, 2026 at 17:59 UTC. Of every earthquake currently listed for worldwide seismic activity, this one generated the most felt reports from the public. The USGS received 913 felt reports from nearby residents — a notable response for an event of this magnitude. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. On the Modified Mercalli scale, shaking reached 3.8 — considered light. At a depth of 11.8 km, the event was shallow crustal. Geolocation places the event at 36.054°N, -89.826°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
A magnitude 4.0 seismic event took place 260 km E of Levuka, Fiji on April 23, 2026 at 17:55 UTC. At 649.8 km, this is the deepest earthquake in the current dataset — firmly in the deep-focus category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: -17.905°, -178.231°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
April 23, 2026 brought a magnitude 4.7 earthquake south of the Kermadec Islands, logged at 17:49 UTC. At a depth of 10.0 km, the event was shallow crustal. The epicenter is at -34.638°, -179.195°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
This magnitude 4.8 event was detected south of the Kermadec Islands on April 23, 2026, with origin time 17:46 UTC. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The epicenter is at -34.736°, -179.380°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Reports of a magnitude 2.3 earthquake 56 km NNW of Petersville, Alaska came in on April 23, 2026 at 17:38 UTC. This was a intermediate depth earthquake, focused at 114.1 km depth. Geolocation places the event at 62.939°N, -151.294°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
Seismographs logged a magnitude 4.6 earthquake south of the Kermadec Islands with origin time 17:25 UTC on April 23, 2026. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. The epicenter is at -34.594°, -179.315°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
On April 23, 2026 at 16:56 UTC, a magnitude 4.3 earthquake struck 109 km E of Miyako, Japan. Coming 17 hours after a magnitude 4.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 39.831°, 143.190°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
On April 23, 2026, worldwide seismic activity registered a magnitude 4.6 earthquake in the Volcano Islands, Japan region at 16:49 UTC. At a depth of 10.0 km, the event was shallow crustal. Geolocation places the event at 23.119°N, 142.450°E. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.3 earthquake 0 km SSW of Santa Isabel, Puerto Rico at 16:44 UTC on April 23, 2026. At a depth of 13.5 km, the event was shallow crustal. Coordinates: 17.964°, -66.406°. The solution has been reviewed by a USGS seismologist and is considered finalized. 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---✓ ReviewedUSGS →
April 23, 2026 brought a magnitude 2.7 earthquake 7 km NNE of Seldovia Village, Alaska, logged at 16:30 UTC. At a depth of 51.4 km, the event was shallow crustal. Geolocation places the event at 59.534°N, -151.595°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.7 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---✓ ReviewedUSGS →
A magnitude 4.3 earthquake was recorded 145 km ESE of Kokopo, Papua New Guinea on April 23, 2026 at 16:27 UTC. At a depth of 118.4 km, the event was intermediate depth. The epicenter is at -4.607°, 153.555°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-04-23
2026-04-23 16:12:02 UTC
2.5md
4 km S of Indios, Puerto Rico
17.957°, -66.826°
18.8 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.5 earthquake 4 km S of Indios, Puerto Rico at 16:12 UTC on April 23, 2026. This was a shallow crustal earthquake, focused at 18.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 17.957°N, -66.826°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 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.