Earthquakes on July 1, 2023
263
EARTHQUAKES on July 1, 2023
24-hour UTC period · USGS data
LARGEST: M5.9 — South Indian Ocean
31 km deep · 2 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
38
M3.0–3.9
16
M2.0–2.9
60
M1.0–1.9
146
Activity Summary
263
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.9
South Indian Ocean
07:29 UTC · 31.0 km deep
Felt by 2
5.3
118 km SW of Severo-Kuril’sk, Russia
09:15 UTC · 132.7 km deep
5.0
105 km NNE of Neiafu, Tonga
22:21 UTC · 46.3 km deep
Felt by 2
4.9
35 km SE of Hasaki, Japan
14:38 UTC · 39.3 km deep
4.8
88 km WSW of Nikolski, Alaska
13:41 UTC · 80.4 km deep
Felt by 9
4.7
58 km NNE of Pototano, Indonesia
18:44 UTC · 11.6 km deep
4.7
south of the Kermadec Islands
13:11 UTC · 10.0 km deep
4.7
83 km ENE of Pilar, Philippines
04:42 UTC · 10.0 km deep
Earthquake Map — July 1, 2023
All Earthquakes — July 1, 2023
Showing 30 of 117 (filtered from 263)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-07-01 2023-07-01 23:59:12 UTC | 3.8md | 136 km N of Suárez, Puerto Rico 19.662°, -65.758° | 59.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.8 earthquake 136 km N of Suárez, Puerto Rico at 23:59 UTC on July 1, 2023. It arrived roughly 10 hours after a larger magnitude 3.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 23:50:11 UTC | 4.6mb | 105 km SSE of Hihifo, Tonga -16.831°, -173.403° | 82.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 23:50 UTC, a magnitude 4.6 earthquake struck 105 km SSE of Hihifo, Tonga. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 23:49:08 UTC | 2.0ml | 80 km WSW of Karluk, Alaska 57.414°, -155.772° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 80 km WSW of Karluk, Alaska on July 1, 2023 at 23:49 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 23:48:50 UTC | 2.0ml | 81 km WSW of Karluk, Alaska 57.412°, -155.790° | 12.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 81 km WSW of Karluk, Alaska with origin time 23:48 UTC on July 1, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 23:42:33 UTC | 4.2mb | 249 km ENE of Levuka, Fiji -17.610°, -178.380° | 595.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 23:42 UTC, a magnitude 4.2 earthquake struck 249 km ENE of Levuka, Fiji. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 23:13:15 UTC | 2.0ml | 52 km E of Juneau, Alaska 58.361°, -133.531° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 52 km E of Juneau, Alaska at 23:13 UTC. Coming 16 hours after a magnitude 3.0 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. | ||||||||
2023-07-01 2023-07-01 23:09:33 UTC | 3.8md | 18 km SE of Boca de Yuma, Dominican Republic 18.284°, -68.468° | 99.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.8 seismic event took place 18 km SE of Boca de Yuma, Dominican Republic on July 1, 2023 at 23:09 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 22:29:00 UTC | 2.1ml | 15km ENE of Ocotillo, CA 32.770°, -115.837° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:29 UTC on July 1, 2023, a magnitude 2.1 tremor occurred 15km ENE of Ocotillo, CA. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 22:21:29 UTC | 5.0mb | 105 km NNE of Neiafu, Tonga -17.778°, -173.580° | 46.3 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 105 km NNE of Neiafu, Tonga with origin time 22:21 UTC on July 1, 2023. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 22:00:35 UTC | 3.8md | 108 km NNE of Cruz Bay, U.S. Virgin Islands 19.286°, -64.559° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.8 event was detected 108 km NNE of Cruz Bay, U.S. Virgin Islands on July 1, 2023, with origin time 22:00 UTC. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 21:14:32 UTC | 2.1ml | 8 km S of Princeton, Canada 49.385°, -120.513° | -0.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 8 km S of Princeton, Canada at 21:14 UTC on July 1, 2023. 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. | ||||||||
2023-07-01 2023-07-01 21:04:48 UTC | 2.1md | 11km NNE of Pinnacles, CA 36.617°, -121.080° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:04 UTC on July 1, 2023, a magnitude 2.1 tremor occurred 11km NNE of Pinnacles, CA. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 20:30:45 UTC | 4.4mb | 155 km WNW of Sola, Vanuatu -13.179°, 166.306° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 20:30 UTC, a magnitude 4.4 earthquake struck 155 km WNW of Sola, Vanuatu. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 20:18:47 UTC | 2.0ml | 6 km SSW of Pāhala, Hawaii 19.144°, -155.500° | 35.0 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 6 km SSW of Pāhala, Hawaii on July 1, 2023, with origin time 20:18 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 20:00:39 UTC | 4.6mb | 207 km SSW of ‘Ohonua, Tonga -23.175°, -175.359° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 207 km SSW of ‘Ohonua, Tonga on July 1, 2023 at 20:00 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:59:34 UTC | 2.0ml | 10 km NE of Pāhala, Hawaii 19.262°, -155.395° | 30.7 km | - | - | - | Auto | USGS → |
July 1, 2023 brought a magnitude 2.0 earthquake 10 km NE of Pāhala, Hawaii, logged at 19:59 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:48:28 UTC | 4.4mb | 169 km SE of Pondaguitan, Philippines 5.135°, 127.097° | 84.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 169 km SE of Pondaguitan, Philippines on July 1, 2023 at 19:48 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:38:40 UTC | 2.3md | 4 km WNW of La Parguera, Puerto Rico 17.994°, -67.081° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 19:38 UTC, a magnitude 2.3 earthquake struck 4 km WNW of La Parguera, Puerto Rico. Coming 9 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. | ||||||||
2023-07-01 2023-07-01 19:32:19 UTC | 2.1ml | 54 km E of Juneau, Alaska 58.363°, -133.505° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 54 km E of Juneau, Alaska at 19:32 UTC on July 1, 2023. Coming 12 hours after a magnitude 3.0 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:30:55 UTC | 2.2md | Puerto Rico region 17.950°, -66.966° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 19:30 UTC, a magnitude 2.2 earthquake struck in the Puerto Rico region. It arrived roughly 15 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:14:14 UTC | 2.4md | Puerto Rico region 17.851°, -66.855° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
At 19:14 UTC on July 1, 2023, a magnitude 2.4 tremor occurred in the Puerto Rico region. Coming 11 hours after a magnitude 3.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 19:01:25 UTC | 4.0mb | Bonin Islands, Japan region 28.716°, 138.057° | 519.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023 at 19:01 UTC, a magnitude 4.0 earthquake struck in the Bonin Islands, Japan region. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 18:51:13 UTC | 2.9ml | 38 km SSW of Valentine, Texas 30.268°, -104.647° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 38 km SSW of Valentine, Texas came in on July 1, 2023 at 18:51 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. | ||||||||
2023-07-01 2023-07-01 18:50:36 UTC | 4.5mb | southwest of Sumatra, Indonesia -6.741°, 103.863° | 26.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023, worldwide seismic activity registered a magnitude 4.5 earthquake southwest of Sumatra, Indonesia at 18:50 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 18:44:15 UTC | 4.7mb | 58 km NNE of Pototano, Indonesia -7.909°, 117.653° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake 58 km NNE of Pototano, Indonesia at 18:44 UTC on July 1, 2023. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 18:29:39 UTC | 2.0ml | 65 km E of Juneau, Alaska 58.341°, -133.305° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:29 UTC on July 1, 2023, a magnitude 2.0 tremor occurred 65 km E of Juneau, Alaska. It arrived roughly 11 hours after a larger magnitude 3.0 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. | ||||||||
2023-07-01 2023-07-01 18:24:48 UTC | 2.1ml | 39 km W of Skwentna, Alaska 61.943°, -152.138° | 121.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 39 km W of Skwentna, Alaska on July 1, 2023, with origin time 18:24 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 18:13:48 UTC | 2.6ml | 8km NNW of Rancho Cucamonga, CA 34.190°, -117.601° | 6.4 km | 6 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 8km NNW of Rancho Cucamonga, CA on July 1, 2023, with origin time 18:13 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 18:12:47 UTC | 4.4mb | Mid-Indian Ridge -26.490°, 72.000° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake near Mid-Indian Ridge with origin time 18:12 UTC on July 1, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-01 2023-07-01 17:52:21 UTC | 2.1md | 4km NNW of Canyondam, CA 40.206°, -121.089° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 1, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 4km NNW of Canyondam, CA at 17:52 UTC. See the M2.1 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 1, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.