Earthquakes on June 28, 2023
225
EARTHQUAKES on June 28, 2023
24-hour UTC period · USGS data
LARGEST: M5.5 — 93 km W of Labasa, Fiji
10 km deep · 2 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
29
M3.0–3.9
11
M2.0–2.9
42
M1.0–1.9
140
Activity Summary
225
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.5
93 km W of Labasa, Fiji
04:21 UTC · 10.0 km deep
Felt by 2
5.4
87 km NW of Fangale’ounga, Tonga
10:54 UTC · 117.7 km deep
Felt by 1
5.1
South Sandwich Islands region
22:41 UTC · 127.4 km deep
4.9
South Sandwich Islands region
04:26 UTC · 64.7 km deep
4.9
Guam region
03:54 UTC · 54.4 km deep
Felt by 26
4.7
Tonga region
15:20 UTC · 10.0 km deep
4.7
270 km SSW of ?Ohonua, Tonga
07:20 UTC · 10.0 km deep
4.6
east of the Kuril Islands
22:48 UTC · 10.0 km deep
Earthquake Map — June 28, 2023
All Earthquakes — June 28, 2023
Showing 30 of 85 (filtered from 225)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-06-28 2023-06-28 23:57:34 UTC | 2.2ml | 79 km SSE of Sand Point, Alaska 54.711°, -159.889° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 79 km SSE of Sand Point, Alaska on June 28, 2023, with origin time 23:57 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 23:47:01 UTC | 3.5ml | 149 km WNW of Nikolski, Alaska 53.261°, -171.025° | 190.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.5 earthquake 149 km WNW of Nikolski, Alaska with origin time 23:47 UTC on June 28, 2023. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 23:26:43 UTC | 2.2ml | 11km SW of Niland, CA 33.186°, -115.615° | 2.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 11km SW of Niland, CA on June 28, 2023 at 23:26 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. | ||||||||
2023-06-28 2023-06-28 23:24:27 UTC | 2.0ml | 26 km S of Ugashik, Alaska 57.281°, -157.339° | 106.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 26 km S of Ugashik, Alaska with origin time 23:24 UTC on June 28, 2023. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 23:03:48 UTC | 2.4ml | 15 km E of Chase, Alaska 62.457°, -149.795° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
On June 28, 2023 at 23:03 UTC, a magnitude 2.4 earthquake struck 15 km E of Chase, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 22:53:57 UTC | 4.3mb | 140 km NNW of Finschhafen, Papua New Guinea -5.428°, 147.270° | 214.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 140 km NNW of Finschhafen, Papua New Guinea at 22:53 UTC on June 28, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 22:48:24 UTC | 4.6mb | east of the Kuril Islands 46.794°, 154.009° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake east of the Kuril Islands came in on June 28, 2023 at 22:48 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 22:41:54 UTC | 5.1mb | South Sandwich Islands region -59.008°, -26.104° | 127.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.1 earthquake in the South Sandwich Islands region with origin time 22:41 UTC on June 28, 2023. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 22:36:08 UTC | 2.3ml | 35 km WSW of Mentone, Texas 31.609°, -103.961° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
On June 28, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 35 km WSW of Mentone, Texas at 22:36 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 22:32:04 UTC | 2.1ml | 35 km WSW of Mentone, Texas 31.610°, -103.961° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 35 km WSW of Mentone, Texas at 22:32 UTC on June 28, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 21:44:54 UTC | 2.2md | 4 km ENE of Maricao, Puerto Rico 18.202°, -66.944° | 12.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 4 km ENE of Maricao, Puerto Rico with origin time 21:44 UTC on June 28, 2023. 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 21:41:02 UTC | 4.5mb | 112 km NW of Madang, Papua New Guinea -4.465°, 145.105° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 112 km NW of Madang, Papua New Guinea on June 28, 2023, with origin time 21:41 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 21:30:03 UTC | 4.6mb | 86 km S of Panguna, Papua New Guinea -7.093°, 155.383° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 86 km S of Panguna, Papua New Guinea on June 28, 2023 at 21:30 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 20:33:42 UTC | 2.5md | 3 km NE of San Germán, Puerto Rico 18.108°, -67.023° | 18.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 3 km NE of San Germán, Puerto Rico on June 28, 2023, with origin time 20:33 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 20:28:12 UTC | 2.7ml | 5 km NNE of Skwentna, Alaska 62.041°, -151.365° | 78.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 5 km NNE of Skwentna, Alaska on June 28, 2023 at 20:28 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 20:21:12 UTC | 2.7mb_lg | 2 km SE of Cheadle, United Kingdom 52.969°, -1.965° | 10.0 km | 37 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 2 km SE of Cheadle, United Kingdom with origin time 20:21 UTC on June 28, 2023. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 20:00:35 UTC | 2.1ml | 7 km NW of Prague, Oklahoma 35.537°, -96.740° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
At 20:00 UTC on June 28, 2023, a magnitude 2.1 tremor occurred 7 km NW of Prague, Oklahoma. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 19:37:33 UTC | 4.0mb | 196 km NE of Kuril’sk, Russia 46.630°, 149.420° | 180.3 km | - | - | - | ✓ Reviewed | USGS → |
On June 28, 2023 at 19:37 UTC, a magnitude 4.0 earthquake struck 196 km NE of Kuril’sk, Russia. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 19:20:54 UTC | 2.0ml | western Texas 32.832°, -100.934° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
On June 28, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake near western Texas at 19:20 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 19:08:37 UTC | 4.6mb | Iran-Iraq border region 32.509°, 47.329° | 13.9 km | 1 | - | - | ✓ Reviewed | USGS → |
June 28, 2023 brought a magnitude 4.6 earthquake in the Iran-Iraq border region, logged at 19:08 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 19:04:22 UTC | 3.2ml | 207 km SE of Chiniak, Alaska 56.372°, -149.725° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 207 km SE of Chiniak, Alaska came in on June 28, 2023 at 19:04 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 18:42:19 UTC | 2.0ml | 18 km WSW of Panguitch, Utah 37.751°, -112.626° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 18 km WSW of Panguitch, Utah on June 28, 2023 at 18:42 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 18:07:23 UTC | 2.1ml | 56 km S of Whites City, New Mexico 31.676°, -104.485° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 56 km S of Whites City, New Mexico on June 28, 2023, with origin time 18:07 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 17:17:56 UTC | 4.1mb | 24 km NNE of Khanu Woralaksaburi, Thailand 16.276°, 99.921° | 11.0 km | 2 | - | - | ✓ Reviewed | USGS → |
June 28, 2023 brought a magnitude 4.1 earthquake 24 km NNE of Khanu Woralaksaburi, Thailand, logged at 17:17 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 17:11:51 UTC | 3.0ml | Gulf of Alaska 56.363°, -149.743° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 28, 2023 at 17:11 UTC, a magnitude 3.0 earthquake struck near Gulf of Alaska. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 17:08:10 UTC | 4.5mb | 155 km ENE of Miyako, Japan 39.961°, 143.707° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 155 km ENE of Miyako, Japan came in on June 28, 2023 at 17:08 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 16:47:05 UTC | 2.4ml | western Texas 31.587°, -104.269° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded near western Texas on June 28, 2023 at 16:47 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 16:43:33 UTC | 4.5mb | western Xizang 34.367°, 88.947° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place near western Xizang on June 28, 2023 at 16:43 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 15:57:42 UTC | 3.2ml | 42 km SSE of Adak, Alaska 51.531°, -176.357° | 33.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 seismic event took place 42 km SSE of Adak, Alaska on June 28, 2023 at 15:57 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-28 2023-06-28 15:44:41 UTC | 2.8ml | Alaska Peninsula 54.678°, -161.590° | 72.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake near Alaska Peninsula at 15:44 UTC on June 28, 2023. See the M2.8 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 June 28, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.