Earthquakes on June 23, 2023
279
EARTHQUAKES on June 23, 2023
24-hour UTC period · USGS data
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
8
M4.0–4.9
34
M3.0–3.9
10
M2.0–2.9
51
M1.0–1.9
176
Activity Summary
279
Total earthquakes
~250
Daily average
Normal
Activity level
8
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.6
141 km SE of Alo, Wallis and Futuna
23:05 UTC · 10.0 km deep
5.6
northern Mid-Atlantic Ridge
21:48 UTC · 10.0 km deep
5.6
94 km NE of Hamatonbetsu, Japan
17:39 UTC · 314.0 km deep
Felt by 1
5.4
northern Mid-Atlantic Ridge
19:08 UTC · 10.0 km deep
5.4
123 km NE of Hihifo, Tonga
19:06 UTC · 35.0 km deep
Felt by 3
5.3
northern Mid-Atlantic Ridge
15:13 UTC · 10.0 km deep
5.2
northern Mid-Atlantic Ridge
13:27 UTC · 10.0 km deep
5.1
Kermadec Islands region
07:26 UTC · 23.0 km deep
Earthquake Map — June 23, 2023
All Earthquakes — June 23, 2023
Showing 30 of 103 (filtered from 279)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-06-23 2023-06-23 23:34:26 UTC | 2.6ml | Island of Hawaii, Hawaii 19.241°, -155.036° | 40.8 km | - | - | - | ✓ Reviewed | USGS → |
At 23:34 UTC on June 23, 2023, a magnitude 2.6 tremor occurred near Island of Hawaii, Hawaii. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 23:34:18 UTC | 4.5mb | southeast of the Loyalty Islands -22.983°, 170.628° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake southeast of the Loyalty Islands at 23:34 UTC on June 23, 2023. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 23:19:14 UTC | 2.6ml | 6 km ENE of Nikolaevsk, Alaska 59.834°, -151.502° | 54.3 km | 5 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 6 km ENE of Nikolaevsk, Alaska on June 23, 2023 at 23:19 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 23:05:52 UTC | 5.6mww | 141 km SE of Alo, Wallis and Futuna -15.350°, -177.350° | 10.0 km | - | III | green | ✓ Reviewed | USGS → |
On June 23, 2023 at 23:05 UTC, a magnitude 5.6 earthquake struck 141 km SE of Alo, Wallis and Futuna. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on June 23, 2023. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 22:52:08 UTC | 2.0ml | 97 km W of Adak, Alaska 51.854°, -178.050° | 3.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 97 km W of Adak, Alaska with origin time 22:52 UTC on June 23, 2023. Coming 5 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 22:46:47 UTC | 4.2mb | 193 km SSE of Ust’-Kamchatsk Staryy, Russia 54.700°, 163.930° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 193 km SSE of Ust’-Kamchatsk Staryy, Russia with origin time 22:46 UTC on June 23, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 22:19:15 UTC | 2.3ml | 4 km SE of Lewiston Orchards, Idaho 46.347°, -116.936° | 5.0 km | 14 | - | - | ✓ Reviewed | USGS → |
On June 23, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 4 km SE of Lewiston Orchards, Idaho at 22:19 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 22:04:30 UTC | 3.1ml | 58 km SSE of Kokhanok, Alaska 58.986°, -154.272° | 120.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 58 km SSE of Kokhanok, Alaska at 22:04 UTC on June 23, 2023. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:51:08 UTC | 2.5ml | 107 km W of Akhiok, Alaska 56.827°, -155.921° | 9.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 107 km W of Akhiok, Alaska at 21:51 UTC on June 23, 2023. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:50:55 UTC | 4.8mb | northern Mid-Atlantic Ridge 45.013°, -27.977° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place near northern Mid-Atlantic Ridge on June 23, 2023 at 21:50 UTC. Coming 1 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:48:25 UTC | 5.6mww | northern Mid-Atlantic Ridge 44.955°, -28.050° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
A magnitude 5.6 earthquake was recorded near northern Mid-Atlantic Ridge on June 23, 2023 at 21:48 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:36:59 UTC | 2.2md | 3 km SSW of Indios, Puerto Rico 17.969°, -66.829° | 14.4 km | - | - | - | ✓ Reviewed | USGS → |
June 23, 2023 brought a magnitude 2.2 earthquake 3 km SSW of Indios, Puerto Rico, logged at 21:36 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:33:57 UTC | 4.1mb | northern Mid-Atlantic Ridge 45.134°, -28.050° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place near northern Mid-Atlantic Ridge on June 23, 2023 at 21:33 UTC. Coming 2 hours after a magnitude 5.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:31:43 UTC | 3.0ml | Rat Islands, Aleutian Islands, Alaska 50.604°, 178.347° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
June 23, 2023 brought a magnitude 3.0 earthquake near Rat Islands, Aleutian Islands, Alaska, logged at 21:31 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:30:31 UTC | 2.3ml | 30 km WSW of Red Dog Mine, Alaska 67.968°, -163.574° | 12.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:30 UTC on June 23, 2023, a magnitude 2.3 tremor occurred 30 km WSW of Red Dog Mine, Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 21:01:51 UTC | 4.5mb | northern Mid-Atlantic Ridge 45.087°, -28.003° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected near northern Mid-Atlantic Ridge on June 23, 2023, with origin time 21:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 2 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:59:09 UTC | 2.9ml | 40 km E of Chase, Alaska 62.441°, -149.326° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake 40 km E of Chase, Alaska with origin time 20:59 UTC on June 23, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:50:40 UTC | 4.4mb | northern Mid-Atlantic Ridge 44.537°, -27.769° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake near northern Mid-Atlantic Ridge with origin time 20:50 UTC on June 23, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:50:04 UTC | 4.3mb | northern Mid-Atlantic Ridge 44.694°, -27.817° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected near northern Mid-Atlantic Ridge on June 23, 2023, with origin time 20:50 UTC. Coming 6 hours after a magnitude 5.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:43:48 UTC | 4.0mb | 102 km ENE of Taltal, Chile -24.907°, -69.630° | 88.0 km | - | - | - | ✓ Reviewed | USGS → |
June 23, 2023 brought a magnitude 4.0 earthquake 102 km ENE of Taltal, Chile, logged at 20:43 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:13:52 UTC | 2.8ml | 86 km SE of Sand Point, Alaska 54.700°, -159.730° | 24.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 86 km SE of Sand Point, Alaska on June 23, 2023, with origin time 20:13 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 20:07:33 UTC | 2.2ml | 53 km ENE of Tonopah, Nevada 38.264°, -116.677° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 23, 2023 at 20:07 UTC, a magnitude 2.2 earthquake struck 53 km ENE of Tonopah, Nevada. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:57:48 UTC | 2.3ml | 91 km SE of King Cove, Alaska 54.423°, -161.424° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 91 km SE of King Cove, Alaska at 19:57 UTC on June 23, 2023. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:42:29 UTC | 4.2mb | Kermadec Islands, New Zealand -30.030°, -178.407° | 148.6 km | - | - | - | ✓ Reviewed | USGS → |
On June 23, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake near Kermadec Islands, New Zealand at 19:42 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:38:27 UTC | 2.1ml | 35 km WSW of Mentone, Texas 31.608°, -103.960° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 35 km WSW of Mentone, Texas at 19:38 UTC on June 23, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:32:03 UTC | 2.0ml | 97 km W of Adak, Alaska 51.854°, -178.047° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
On June 23, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 97 km W of Adak, Alaska at 19:32 UTC. It arrived roughly 1 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:28:07 UTC | 3.0ml | 18 km SE of Valdez, Alaska 61.029°, -146.084° | 14.9 km | - | - | - | ✓ Reviewed | USGS → |
On June 23, 2023 at 19:28 UTC, a magnitude 3.0 earthquake struck 18 km SE of Valdez, Alaska. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:25:38 UTC | 2.1ml | 36 km WSW of Mentone, Texas 31.609°, -103.962° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 36 km WSW of Mentone, Texas on June 23, 2023, with origin time 19:25 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:19:30 UTC | 4.4mb | northern Mid-Atlantic Ridge 45.304°, -28.281° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 23, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake near northern Mid-Atlantic Ridge at 19:19 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-23 2023-06-23 19:12:00 UTC | 4.5mb | 15 km S of Calatagan, Philippines 13.688°, 120.630° | 148.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 15 km S of Calatagan, Philippines came in on June 23, 2023 at 19:12 UTC. The event was offshore. See the M4.5 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 June 23, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.