Earthquakes on May 31, 2023
299
EARTHQUAKES on May 31, 2023
24-hour UTC period · USGS data
15 km deep · 4 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
32
M3.0–3.9
11
M2.0–2.9
50
M1.0–1.9
199
Activity Summary
299
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.3
Auckland Islands, New Zealand region
02:21 UTC · 14.8 km deep
Felt by 4
5.9
121 km WSW of Myitkyina, Myanmar
11:20 UTC · 10.0 km deep
Felt by 6
5.5
108 km SSE of Ust’-Kamchatsk Staryy, Russia
14:01 UTC · 10.0 km deep
5.3
246 km N of Puerto Ayora, Ecuador
10:55 UTC · 10.0 km deep
5.2
10 km NE of Ambon, Indonesia
21:56 UTC · 117.6 km deep
5.1
163 km NW of Tuapejat, Indonesia
00:58 UTC · 21.1 km deep
5.0
51 km ENE of Balkanabat, Turkmenistan
04:04 UTC · 40.0 km deep
Felt by 1
4.9
South Sandwich Islands region
08:11 UTC · 39.3 km deep
Earthquake Map — May 31, 2023
All Earthquakes — May 31, 2023
Showing 30 of 100 (filtered from 299)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-05-31 2023-05-31 23:33:03 UTC | 3.1md | 73 km NW of San Antonio, Puerto Rico 18.892°, -67.658° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 73 km NW of San Antonio, Puerto Rico at 23:33 UTC on May 31, 2023. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 23:27:27 UTC | 2.4ml | 10km WNW of Garnet, CA 33.951°, -116.643° | 16.3 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 10km WNW of Garnet, CA at 23:27 UTC on May 31, 2023. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 23:22:55 UTC | 4.0mb | 4 km W of Gorontalo, Indonesia 0.539°, 123.021° | 258.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.0 earthquake 4 km W of Gorontalo, Indonesia came in on May 31, 2023 at 23:22 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 23:11:10 UTC | 4.2mb | Galapagos Islands, Ecuador region 1.982°, -90.256° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
May 31, 2023 brought a magnitude 4.2 earthquake in the Galapagos Islands, Ecuador region, logged at 23:11 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 21:57:13 UTC | 2.7ml | 72 km SSW of Adak, Alaska 51.266°, -177.007° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 72 km SSW of Adak, Alaska at 21:57 UTC on May 31, 2023. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 21:56:50 UTC | 2.2ml | 62 km NNE of Petersville, Alaska 63.042°, -150.449° | 101.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 62 km NNE of Petersville, Alaska at 21:56 UTC on May 31, 2023. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 21:56:38 UTC | 5.2mww | 10 km NE of Ambon, Indonesia -3.626°, 128.253° | 117.6 km | - | - | - | ✓ Reviewed | USGS → |
At 21:56 UTC on May 31, 2023, a magnitude 5.2 tremor occurred 10 km NE of Ambon, Indonesia. The event was offshore. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 21:33:51 UTC | 2.0ml | 6 km SE of Waimea, Hawaii 19.978°, -155.629° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 6 km SE of Waimea, Hawaii on May 31, 2023, with origin time 21:33 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 21:12:22 UTC | 3.1ml | 32km E of Maneadero, B.C., MX 31.739°, -116.234° | 5.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 32km E of Maneadero, B.C., MX on May 31, 2023, with origin time 21:12 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 20:57:11 UTC | 2.1ml | 115 km E of Chignik, Alaska 56.293°, -156.538° | 67.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 115 km E of Chignik, Alaska on May 31, 2023, with origin time 20:57 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 20:47:28 UTC | 2.2ml | 5 km WNW of Happy Valley, Alaska 59.971°, -151.821° | 57.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 5 km WNW of Happy Valley, Alaska on May 31, 2023, with origin time 20:47 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 20:02:05 UTC | 4.4mb | Kermadec Islands, New Zealand -29.350°, -177.331° | 52.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake near Kermadec Islands, New Zealand came in on May 31, 2023 at 20:02 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:59:39 UTC | 3.9mw | 112km W of Petrolia, CA 40.350°, -125.601° | 10.0 km | 10 | II | - | ✓ Reviewed | USGS → |
May 31, 2023 brought a magnitude 3.9 earthquake 112km W of Petrolia, CA, logged at 19:59 UTC. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:59:07 UTC | 3.2ml | 105 km SSE of Sand Point, Alaska 54.492°, -159.754° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 31, 2023, worldwide seismic activity registered a magnitude 3.2 earthquake 105 km SSE of Sand Point, Alaska at 19:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 8 hours earlier. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:38:30 UTC | 2.1md | 1 km ENE of Guayanilla, Puerto Rico 18.023°, -66.783° | 15.7 km | - | - | - | ✓ Reviewed | USGS → |
On May 31, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 1 km ENE of Guayanilla, Puerto Rico at 19:38 UTC. Coming 17 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:11:38 UTC | 2.2ml | 75 km WSW of Karluk, Alaska 57.303°, -155.605° | 81.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 75 km WSW of Karluk, Alaska came in on May 31, 2023 at 19:11 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:11:11 UTC | 4.3mb | 65 km WNW of Kirakira, Solomon Islands -10.226°, 161.368° | 92.7 km | - | - | - | ✓ Reviewed | USGS → |
At 19:11 UTC on May 31, 2023, a magnitude 4.3 tremor occurred 65 km WNW of Kirakira, Solomon Islands. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 19:05:21 UTC | 2.0ml | 5 km E of Butte, Montana 46.014°, -112.460° | -2.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 5 km E of Butte, Montana at 19:05 UTC on May 31, 2023. 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. | ||||||||
2023-05-31 2023-05-31 18:32:16 UTC | 2.0ml | 129 km SW of Adak, Alaska 51.183°, -178.129° | 28.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 129 km SW of Adak, Alaska on May 31, 2023 at 18:32 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 18:26:34 UTC | 2.3ml | Alaska Peninsula 54.742°, -161.864° | 56.4 km | - | - | - | ✓ Reviewed | USGS → |
On May 31, 2023 at 18:26 UTC, a magnitude 2.3 earthquake struck near Alaska Peninsula. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 18:09:17 UTC | 2.8ml | 73 km SE of Unalaska, Alaska 53.472°, -165.661° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 73 km SE of Unalaska, Alaska with origin time 18:09 UTC on May 31, 2023. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 18:01:30 UTC | 4.3mb | south of the Fiji Islands -22.194°, -179.501° | 584.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake south of the Fiji Islands at 18:01 UTC on May 31, 2023. This event falls inside the aftershock decay of a nearby magnitude 4.5 earthquake that occurred about 4 hours earlier. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 18:00:31 UTC | 2.4ml | 27 km N of Adak, Alaska 52.125°, -176.634° | 205.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 27 km N of Adak, Alaska with origin time 18:00 UTC on May 31, 2023. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 17:54:18 UTC | 4.6mb | south of the Fiji Islands -25.170°, -176.384° | 24.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded south of the Fiji Islands on May 31, 2023 at 17:54 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 17:08:25 UTC | 2.6ml | 33 km NNW of Brevig Mission, Alaska 65.603°, -166.813° | 24.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 33 km NNW of Brevig Mission, Alaska came in on May 31, 2023 at 17:08 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 16:46:52 UTC | 4.7mb | north of Ascension Island -1.169°, -15.784° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
May 31, 2023 brought a magnitude 4.7 earthquake north of Ascension Island, logged at 16:46 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 15:53:23 UTC | 2.2ml | 50 km S of Whites City, New Mexico 31.721°, -104.304° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 50 km S of Whites City, New Mexico on May 31, 2023 at 15:53 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 15:44:15 UTC | 4.3mb | 119 km SSE of Panguna, Papua New Guinea -7.346°, 155.816° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 119 km SSE of Panguna, Papua New Guinea on May 31, 2023, with origin time 15:44 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 15:22:18 UTC | 4.3mb | 45 km SW of Borūjen, Iran 31.696°, 50.918° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 45 km SW of Borūjen, Iran came in on May 31, 2023 at 15:22 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-31 2023-05-31 15:07:18 UTC | 2.3ml | 8km NNE of Banning, CA 33.995°, -116.839° | 17.8 km | 3 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 8km NNE of Banning, CA on May 31, 2023, with origin time 15:07 UTC. See the M2.3 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 May 31, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.