Earthquakes on May 27, 2023
239
EARTHQUAKES on May 27, 2023
24-hour UTC period · USGS data
LARGEST: M6.0 — Tonga
222 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
32
M3.0–3.9
8
M2.0–2.9
53
M1.0–1.9
144
Activity Summary
239
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.0
Tonga
00:11 UTC · 222.0 km deep
Felt by 1
5.5
South Sandwich Islands region
15:21 UTC · 46.2 km deep
4.9
Banda Sea
19:36 UTC · 156.1 km deep
4.9
Svalbard region
16:46 UTC · 10.0 km deep
4.8
57 km WSW of Kurio, Japan
13:52 UTC · 10.0 km deep
4.8
southeast of the Loyalty Islands
02:34 UTC · 10.0 km deep
4.6
230 km NNW of Rio Preto da Eva, Brazil
03:27 UTC · 10.0 km deep
4.5
25 km N of Rangāpāra, India
21:36 UTC · 10.0 km deep
Felt by 1
Earthquake Map — May 27, 2023
All Earthquakes — May 27, 2023
Showing 30 of 95 (filtered from 239)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-05-27 2023-05-27 23:54:36 UTC | 2.1ml | 28 km WNW of Challis, Idaho 44.593°, -114.574° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
At 23:54 UTC on May 27, 2023, a magnitude 2.1 tremor occurred 28 km WNW of Challis, Idaho. It arrived roughly 13 hours after a larger magnitude 2.3 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. | ||||||||
2023-05-27 2023-05-27 23:47:58 UTC | 2.1md | 5 km N of Black Rock, Arkansas 36.156°, -91.091° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 5 km N of Black Rock, Arkansas on May 27, 2023 at 23:47 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:44:32 UTC | 2.3ml | 32 km NNW of Challis, Idaho 44.773°, -114.398° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 32 km NNW of Challis, Idaho with origin time 23:44 UTC on May 27, 2023. Coming 1 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:34:01 UTC | 4.4mb | 49 km NNW of Madang, Papua New Guinea -4.839°, 145.557° | 148.6 km | - | - | - | ✓ Reviewed | USGS → |
On May 27, 2023 at 23:34 UTC, a magnitude 4.4 earthquake struck 49 km NNW of Madang, Papua New Guinea. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:18:57 UTC | 2.3ml | 32 km NNW of Challis, Idaho 44.764°, -114.409° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 32 km NNW of Challis, Idaho on May 27, 2023, with origin time 23:18 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. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:15:59 UTC | 2.5ml | 33 km NNW of Challis, Idaho 44.773°, -114.417° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 33 km NNW of Challis, Idaho at 23:15 UTC on May 27, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:14:33 UTC | 2.5ml | 33 km NNW of Challis, Idaho 44.782°, -114.390° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 33 km NNW of Challis, Idaho on May 27, 2023, with origin time 23:14 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:05:30 UTC | 2.1ml | 37 km W of Clear, Alaska 64.245°, -149.963° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
At 23:05 UTC on May 27, 2023, a magnitude 2.1 tremor occurred 37 km W of Clear, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 23:03:09 UTC | 2.1ml | 43 km NW of Akhiok, Alaska 57.194°, -154.735° | 44.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 43 km NW of Akhiok, Alaska at 23:03 UTC on May 27, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 22:59:19 UTC | 3.1ml | 8 km E of Wright, Wyoming 43.751°, -105.384° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 27, 2023 at 22:59 UTC, a magnitude 3.1 earthquake struck 8 km E of Wright, Wyoming. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 22:47:16 UTC | 2.1ml | 89 km NW of Karluk, Alaska 58.194°, -155.391° | 1.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 89 km NW of Karluk, Alaska on May 27, 2023, with origin time 22:47 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 6 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 22:45:53 UTC | 2.0ml | 86 km NNW of Karluk, Alaska 58.251°, -155.152° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 86 km NNW of Karluk, Alaska came in on May 27, 2023 at 22:45 UTC. It arrived roughly 6 hours after a larger magnitude 2.8 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. | ||||||||
2023-05-27 2023-05-27 22:06:05 UTC | 4.4mb | 223 km ENE of Levuka, Fiji -17.634°, -178.627° | 571.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 223 km ENE of Levuka, Fiji on May 27, 2023 at 22:06 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. | ||||||||
2023-05-27 2023-05-27 21:38:42 UTC | 2.1ml | Island of Hawaii, Hawaii 19.169°, -155.481° | 31.0 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.1 earthquake near Island of Hawaii, Hawaii with origin time 21:38 UTC on May 27, 2023. It arrived roughly 6 hours after a larger magnitude 3.0 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. | ||||||||
2023-05-27 2023-05-27 21:38:25 UTC | 2.2ml | 3 km S of Pāhala, Hawaii 19.174°, -155.480° | 31.4 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.2 earthquake 3 km S of Pāhala, Hawaii came in on May 27, 2023 at 21:38 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 21:36:33 UTC | 4.5mb | 25 km N of Rangāpāra, India 27.069°, 92.680° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 25 km N of Rangāpāra, India came in on May 27, 2023 at 21:36 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 21:21:34 UTC | 2.1md | 3 km S of Pāhala, Hawaii 19.170°, -155.473° | 32.0 km | - | - | - | Auto | USGS → |
On May 27, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 3 km S of Pāhala, Hawaii at 21:21 UTC. Coming 5 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 21:07:03 UTC | 2.1ml | 62 km SE of Pope-Vannoy Landing, Alaska 59.155°, -153.719° | 86.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 62 km SE of Pope-Vannoy Landing, Alaska came in on May 27, 2023 at 21:07 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 20:11:28 UTC | 3.8md | 138 km NNE of Cruz Bay, U.S. Virgin Islands 19.488°, -64.296° | 50.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.8 event was detected 138 km NNE of Cruz Bay, U.S. Virgin Islands on May 27, 2023, with origin time 20:11 UTC. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 19:36:36 UTC | 4.9mww | Banda Sea -6.122°, 130.444° | 156.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake near Banda Sea with origin time 19:36 UTC on May 27, 2023. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 19:24:53 UTC | 4.2mb | 23 km NW of Ashkāsham, Afghanistan 36.855°, 71.383° | 182.8 km | 2 | - | - | ✓ Reviewed | USGS → |
At 19:24 UTC on May 27, 2023, a magnitude 4.2 tremor occurred 23 km NW of Ashkāsham, Afghanistan. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 18:35:32 UTC | 2.3ml | Kenai Peninsula, Alaska 59.814°, -148.003° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
On May 27, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake near Kenai Peninsula, Alaska at 18:35 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 18:20:08 UTC | 2.0ml | 5 km SSW of Pāhala, Hawaii 19.158°, -155.491° | 32.4 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 5 km SSW of Pāhala, Hawaii at 18:20 UTC on May 27, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 2 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 18:15:38 UTC | 2.0ml | 86 km NNW of Karluk, Alaska 58.270°, -155.099° | 0.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 86 km NNW of Karluk, Alaska on May 27, 2023 at 18:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 1 hours earlier. 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. | ||||||||
2023-05-27 2023-05-27 17:34:25 UTC | 2.2ml | 54 km S of Whites City, New Mexico 31.686°, -104.289° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 54 km S of Whites City, New Mexico on May 27, 2023 at 17:34 UTC. Coming 9 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 17:24:15 UTC | 4.2mb | 84 km W of Murghob, Tajikistan 38.249°, 73.008° | 127.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 84 km W of Murghob, Tajikistan at 17:24 UTC on May 27, 2023. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 17:08:53 UTC | 2.8ml | 86 km NNW of Karluk, Alaska 58.264°, -155.090° | 1.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 86 km NNW of Karluk, Alaska came in on May 27, 2023 at 17:08 UTC. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 17:01:00 UTC | 2.0ml | 93 km SSE of King Cove, Alaska 54.347°, -161.563° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
May 27, 2023 brought a magnitude 2.0 earthquake 93 km SSE of King Cove, Alaska, logged at 17:01 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 16:50:40 UTC | 4.3mwr | Off the coast of Aisen, Chile -45.558°, -77.030° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
May 27, 2023 brought a magnitude 4.3 earthquake near Off the coast of Aisen, Chile, logged at 16:50 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-05-27 2023-05-27 16:49:23 UTC | 4.4ml | 74 km E of Port Alsworth, Alaska 60.281°, -152.973° | 136.3 km | 16 | II | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 74 km E of Port Alsworth, Alaska with origin time 16:49 UTC on May 27, 2023. A tsunami evaluation was automatically initiated given the magnitude and location. The event was offshore. See the M4.4 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 27, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.