Earthquakes on July 27, 2023
267
EARTHQUAKES on July 27, 2023
24-hour UTC period · USGS data
LARGEST: M5.5 — 107 km ESE of Hihifo, Tonga
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
8
M4.0–4.9
31
M3.0–3.9
6
M2.0–2.9
50
M1.0–1.9
172
Activity Summary
267
Total earthquakes
~250
Daily average
Normal
Activity level
8
M5.0+ events
Significant Earthquakes (M4.5+)
5.5
107 km ESE of Hihifo, Tonga
00:28 UTC · 10.0 km deep
5.4
south of the Fiji Islands
11:43 UTC · 401.1 km deep
5.4
83 km SSE of Sola, Vanuatu
01:25 UTC · 10.0 km deep
5.3
92 km ENE of Shikotan, Russia
11:06 UTC · 77.9 km deep
5.3
103 km SSE of Sola, Vanuatu
07:03 UTC · 10.0 km deep
5.1
central Mid-Atlantic Ridge
20:13 UTC · 10.0 km deep
5.0
206 km NNE of Shi Yomi, India
22:13 UTC · 10.0 km deep
5.0
87 km ENE of Port-Olry, Vanuatu
22:10 UTC · 10.0 km deep
Earthquake Map — July 27, 2023
All Earthquakes — July 27, 2023
Showing 30 of 95 (filtered from 267)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-07-27 2023-07-27 23:47:36 UTC | 2.0md | 12 km S of Tres Pinos, CA 36.684°, -121.316° | 3.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 12 km S of Tres Pinos, CA on July 27, 2023 at 23:47 UTC. 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. | ||||||||
2023-07-27 2023-07-27 23:25:11 UTC | 4.2mb | Fiji region -21.372°, -179.013° | 621.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place in the Fiji region on July 27, 2023 at 23:25 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:48:51 UTC | 4.1mb | 165 km ESE of Masohi, Indonesia -3.789°, 130.377° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 165 km ESE of Masohi, Indonesia with origin time 22:48 UTC on July 27, 2023. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:16:52 UTC | 4.4mb | 207 km N of Shi Yomi, India 30.401°, 94.427° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 207 km N of Shi Yomi, India on July 27, 2023 at 22:16 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:13:55 UTC | 5.0mb | 206 km NNE of Shi Yomi, India 30.350°, 94.832° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.0 event was detected 206 km NNE of Shi Yomi, India on July 27, 2023, with origin time 22:13 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:11:23 UTC | 2.1ml | 22 km WNW of Petersville, Alaska 62.605°, -151.144° | 89.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 22 km WNW of Petersville, Alaska with origin time 22:11 UTC on July 27, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:10:37 UTC | 5.0mww | 87 km ENE of Port-Olry, Vanuatu -14.686°, 167.800° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 5.0 earthquake 87 km ENE of Port-Olry, Vanuatu came in on July 27, 2023 at 22:10 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 21 hours earlier. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 22:08:15 UTC | 4.1mb | 23 km WSW of El Palmarcito, Mexico 15.443°, -93.430° | 90.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023, worldwide seismic activity registered a magnitude 4.1 earthquake 23 km WSW of El Palmarcito, Mexico at 22:08 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 21:46:39 UTC | 2.2ml | 1 km NNW of Pāhala, Hawaii 19.215°, -155.483° | 29.8 km | - | - | - | Auto | USGS → |
July 27, 2023 brought a magnitude 2.2 earthquake 1 km NNW of Pāhala, Hawaii, logged at 21:46 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 21:22:24 UTC | 4.5mb | Maug Islands region, Northern Mariana Islands 19.073°, 145.487° | 133.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected in the Maug Islands region, Northern Mariana Islands on July 27, 2023, with origin time 21:22 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 21:21:50 UTC | 4.4mb | Kuril Islands 46.446°, 152.105° | 48.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake near Kuril Islands with origin time 21:21 UTC on July 27, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 21:03:19 UTC | 2.1ml | 8 km ENE of Sprague, Washington 47.325°, -117.866° | -0.7 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023 at 21:03 UTC, a magnitude 2.1 earthquake struck 8 km ENE of Sprague, Washington. 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. | ||||||||
2023-07-27 2023-07-27 20:51:29 UTC | 3.7ml | 89 km ENE of Dawson City, Canada 64.311°, -137.694° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023 at 20:51 UTC, a magnitude 3.7 earthquake struck 89 km ENE of Dawson City, Canada. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 20:48:41 UTC | 2.0ml | 89 km SSE of Sand Point, Alaska 54.622°, -159.870° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 89 km SSE of Sand Point, Alaska with origin time 20:48 UTC on July 27, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 20:13:11 UTC | 5.1mww | central Mid-Atlantic Ridge 3.279°, -31.451° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.1 earthquake near central Mid-Atlantic Ridge at 20:13 UTC on July 27, 2023. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 20:08:52 UTC | 4.6mb | central Mid-Atlantic Ridge 3.417°, -31.470° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023, worldwide seismic activity registered a magnitude 4.6 earthquake near central Mid-Atlantic Ridge at 20:08 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 20:07:30 UTC | 4.0mb | Sicily, Italy 38.678°, 15.569° | 173.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.0 event was detected near Sicily, Italy on July 27, 2023, with origin time 20:07 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 20:05:43 UTC | 2.7ml | 113 km SE of King Cove, Alaska 54.354°, -161.054° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023 at 20:05 UTC, a magnitude 2.7 earthquake struck 113 km SE of King Cove, Alaska. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 19:59:49 UTC | 2.2ml | 46 km NNW of Fort Irwin, CA 35.646°, -116.865° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 46 km NNW of Fort Irwin, CA on July 27, 2023 at 19:59 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 19:35:17 UTC | 2.1ml | 86 km NW of Karluk, Alaska 58.185°, -155.338° | 1.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 86 km NW of Karluk, Alaska at 19:35 UTC. 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. | ||||||||
2023-07-27 2023-07-27 19:26:10 UTC | 2.4md | 23 km WSW of Ferndale, CA 40.471°, -124.494° | 25.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 23 km WSW of Ferndale, CA on July 27, 2023, with origin time 19:26 UTC. It arrived roughly 13 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 18:48:28 UTC | 2.4ml | 17 km NE of Hermleigh, Texas 32.764°, -100.647° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023, worldwide seismic activity registered a magnitude 2.4 earthquake 17 km NE of Hermleigh, Texas at 18:48 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 18:44:32 UTC | 4.3mb | 63 km SSW of Port-Vila, Vanuatu -18.271°, 168.103° | 128.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 63 km SSW of Port-Vila, Vanuatu came in on July 27, 2023 at 18:44 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 18:37:57 UTC | 2.9ml | 63 km SE of King Cove, Alaska 54.721°, -161.527° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake 63 km SE of King Cove, Alaska at 18:37 UTC on July 27, 2023. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 18:12:28 UTC | 2.3ml | Andreanof Islands, Aleutian Islands, Alaska 52.214°, -175.649° | 207.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place near Andreanof Islands, Aleutian Islands, Alaska on July 27, 2023 at 18:12 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 17:59:26 UTC | 2.9md | 1 km ESE of Almanor, CA 40.215°, -121.167° | 2.8 km | 19 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.9 event was detected 1 km ESE of Almanor, CA on July 27, 2023, with origin time 17:59 UTC. 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. | ||||||||
2023-07-27 2023-07-27 17:56:24 UTC | 4.5mb | 120 km SE of Sola, Vanuatu -14.714°, 168.261° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 120 km SE of Sola, Vanuatu came in on July 27, 2023 at 17:56 UTC. Coming 17 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 17:50:30 UTC | 2.6ml | 70 km NNE of Chignik, Alaska 56.900°, -158.097° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2023, worldwide seismic activity registered a magnitude 2.6 earthquake 70 km NNE of Chignik, Alaska at 17:50 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 17:47:50 UTC | 2.1ml | 32 km SSW of White Mountain, Alaska 64.407°, -163.654° | 13.7 km | - | - | - | ✓ Reviewed | USGS → |
At 17:47 UTC on July 27, 2023, a magnitude 2.1 tremor occurred 32 km SSW of White Mountain, Alaska. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-27 2023-07-27 17:42:17 UTC | 2.6ml | Rat Islands, Aleutian Islands, Alaska 50.420°, 177.759° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:42 UTC on July 27, 2023, a magnitude 2.6 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M2.6 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 July 27, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.