Earthquakes on July 8, 2023
251
EARTHQUAKES on July 8, 2023
24-hour UTC period · USGS data
LARGEST: M5.6 — 85 km E of Hengchun, Taiwan
4 km deep · 8 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
39
M3.0–3.9
12
M2.0–2.9
38
M1.0–1.9
160
Activity Summary
251
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.6
85 km E of Hengchun, Taiwan
19:47 UTC · 4.0 km deep
Felt by 8
5.1
90 km E of Hengchun, Taiwan
21:22 UTC · 10.0 km deep
4.9
96 km E of Hengchun, Taiwan
20:26 UTC · 10.0 km deep
4.9
Volcano Islands, Japan region
19:30 UTC · 24.2 km deep
4.9
south of Tonga
05:20 UTC · 30.8 km deep
4.8
39 km ENE of Kandrian, Papua New Guinea
14:10 UTC · 42.9 km deep
4.8
17 km NNE of Náfpaktos, Greece
14:02 UTC · 10.0 km deep
4.7
110 km SE of Modisi, Indonesia
06:06 UTC · 51.6 km deep
Earthquake Map — July 8, 2023
All Earthquakes — July 8, 2023
Showing 30 of 91 (filtered from 251)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-07-08 2023-07-08 23:45:57 UTC | 2.4ml | 34 km SE of Malaga, New Mexico 32.003°, -103.818° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 8, 2023, worldwide seismic activity registered a magnitude 2.4 earthquake 34 km SE of Malaga, New Mexico at 23:45 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 23:40:16 UTC | 4.1mb | Fiji region -21.474°, -179.123° | 566.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected in the Fiji region on July 8, 2023, with origin time 23:40 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 23:21:56 UTC | 2.1ml | 69 km N of Karluk, Alaska 58.183°, -154.649° | 88.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 69 km N of Karluk, Alaska on July 8, 2023 at 23:21 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 23:15:37 UTC | 2.8mb_lg | 14 km NW of Saint-Boniface, Canada 46.596°, -76.119° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 14 km NW of Saint-Boniface, Canada on July 8, 2023, with origin time 23:15 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 22:47:09 UTC | 2.2ml | 17km W of Searles Valley, CA 35.772°, -117.593° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 17km W of Searles Valley, CA on July 8, 2023 at 22:47 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 21:53:02 UTC | 2.0ml | 14 km NNE of Karluk, Alaska 57.697°, -154.401° | 50.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 14 km NNE of Karluk, Alaska at 21:53 UTC on July 8, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 21:33:30 UTC | 4.2mb | 10 km SSW of Piedecuesta, Colombia 6.902°, -73.089° | 147.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 8, 2023 at 21:33 UTC, a magnitude 4.2 earthquake struck 10 km SSW of Piedecuesta, Colombia. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 21:22:03 UTC | 5.1mww | 90 km E of Hengchun, Taiwan 21.885°, 121.609° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.1 earthquake was recorded 90 km E of Hengchun, Taiwan on July 8, 2023 at 21:22 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 2 hours earlier. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 20:51:55 UTC | 4.0mb | 27 km SE of Saipan, Northern Mariana Islands 15.039°, 145.940° | 107.0 km | - | - | - | ✓ Reviewed | USGS → |
July 8, 2023 brought a magnitude 4.0 earthquake 27 km SE of Saipan, Northern Mariana Islands, logged at 20:51 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 20:26:32 UTC | 4.9mb | 96 km E of Hengchun, Taiwan 22.070°, 121.673° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 96 km E of Hengchun, Taiwan with origin time 20:26 UTC on July 8, 2023. Coming 1 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 20:12:55 UTC | 4.4mb | 43 km SSW of Puerto El Triunfo, El Salvador 12.902°, -88.663° | 57.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 43 km SSW of Puerto El Triunfo, El Salvador at 20:12 UTC on July 8, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:47:11 UTC | 5.6mww | 85 km E of Hengchun, Taiwan 21.927°, 121.569° | 4.0 km | 8 | V | green | ✓ Reviewed | USGS → |
On July 8, 2023 at 19:47 UTC, a magnitude 5.6 earthquake struck 85 km E of Hengchun, Taiwan. 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 July 8, 2023. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:38:52 UTC | 2.9ml | 91 km SE of Akutan, Alaska 53.577°, -164.763° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:38 UTC on July 8, 2023, a magnitude 2.9 tremor occurred 91 km SE of Akutan, Alaska. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:38:02 UTC | 4.2mb | 135 km NNW of Castelo Branco, Portugal 39.600°, -29.453° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 135 km NNW of Castelo Branco, Portugal on July 8, 2023 at 19:38 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:30:23 UTC | 4.9mb | Volcano Islands, Japan region 24.057°, 142.898° | 24.2 km | - | - | - | ✓ Reviewed | USGS → |
On July 8, 2023, worldwide seismic activity registered a magnitude 4.9 earthquake in the Volcano Islands, Japan region at 19:30 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:29:32 UTC | 4.5mb | 66 km SSW of Kastrí, Greece 34.288°, 23.777° | 44.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 66 km SSW of Kastrí, Greece on July 8, 2023 at 19:29 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:16:12 UTC | 4.1mb | 20 km NE of Kīsh, Iran 26.674°, 54.178° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 20 km NE of Kīsh, Iran came in on July 8, 2023 at 19:16 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 19:05:19 UTC | 3.2md | 58 km W of Puerto Real, Puerto Rico 18.027°, -67.740° | 75.7 km | - | - | - | ✓ Reviewed | USGS → |
July 8, 2023 brought a magnitude 3.2 earthquake 58 km W of Puerto Real, Puerto Rico, logged at 19:05 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:51:23 UTC | 2.1ml | 28 km NNW of Brevig Mission, Alaska 65.557°, -166.806° | 3.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 28 km NNW of Brevig Mission, Alaska with origin time 18:51 UTC on July 8, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 5 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. | ||||||||
2023-07-08 2023-07-08 18:47:11 UTC | 2.3md | 3 km S of Las Mar?as, Puerto Rico 18.222°, -66.996° | 27.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 3 km S of Las Mar?as, Puerto Rico came in on July 8, 2023 at 18:47 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:44:12 UTC | 2.2md | 1km NE of Prattville, CA 40.217°, -121.145° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 1km NE of Prattville, CA on July 8, 2023, with origin time 18:44 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. | ||||||||
2023-07-08 2023-07-08 18:42:37 UTC | 3.8md | 40 km SE of Christiansted, U.S. Virgin Islands 17.516°, -64.412° | 31.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:42 UTC on July 8, 2023, a magnitude 3.8 tremor occurred 40 km SE of Christiansted, U.S. Virgin Islands. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:40:44 UTC | 2.9ml | Unimak Island region, Alaska 54.442°, -164.387° | 107.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake in the Unimak Island region, Alaska at 18:40 UTC on July 8, 2023. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:38:40 UTC | 2.0ml | 67 km W of Salamatof, Alaska 60.724°, -152.536° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 67 km W of Salamatof, Alaska on July 8, 2023, with origin time 18:38 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:32:30 UTC | 4.4mb | 55 km WNW of Abepura, Indonesia -2.467°, 140.150° | 27.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 55 km WNW of Abepura, Indonesia on July 8, 2023, with origin time 18:32 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:23:22 UTC | 3.3ml | 185 km SW of Nikolski, Alaska 51.948°, -171.060° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 185 km SW of Nikolski, Alaska on July 8, 2023 at 18:23 UTC. It arrived roughly 18 hours after a larger magnitude 3.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:15:20 UTC | 3.8mb | 24 km SE of Adak, Alaska 51.697°, -176.421° | 55.0 km | - | II | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.8 earthquake 24 km SE of Adak, Alaska with origin time 18:15 UTC on July 8, 2023. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 18:05:16 UTC | 3.1ml | 219 km WSW of Adak, Alaska 51.510°, -179.760° | 63.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 8, 2023 at 18:05 UTC, a magnitude 3.1 earthquake struck 219 km WSW of Adak, Alaska. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 17:57:29 UTC | 4.4mb | 6 km SW of Hafnarfjörður, Iceland 64.016°, -22.016° | 5.0 km | 10 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 6 km SW of Hafnarfjörður, Iceland came in on July 8, 2023 at 17:57 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-08 2023-07-08 17:34:49 UTC | 3.1ml | Rat Islands, Aleutian Islands, Alaska 51.827°, 178.336° | 114.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded near Rat Islands, Aleutian Islands, Alaska on July 8, 2023 at 17:34 UTC. See the M3.1 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 8, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.