Earthquakes on May 28, 2023

253
EARTHQUAKES on May 28, 2023
24-hour UTC period · USGS data
98 km deep · 1 person felt it
Normal activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
5
M4.0–4.9
25
M3.0–3.9
25
M2.0–2.9
53
M1.0–1.9
145

Activity Summary

253
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events

Earthquake Map — May 28, 2023

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — May 28, 2023

Showing 30 of 108 (filtered from 253)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2023-05-28
2023-05-28 23:29:54 UTC
2.1ml
51 km SE of Sand Point, Alaska
54.954°, -160.050°
23.6 km---✓ ReviewedUSGS →
At 23:29 UTC on May 28, 2023, a magnitude 2.1 tremor occurred 51 km SE of Sand Point, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 23:16:40 UTC
2.2ml
4 km WSW of Hope, Alaska
60.906°, -149.726°
26.6 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.2 earthquake 4 km WSW of Hope, Alaska at 23:16 UTC on May 28, 2023. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 23:07:58 UTC
2.0ml
61 km ENE of Pedro Bay, Alaska
59.988°, -153.074°
122.3 km---✓ ReviewedUSGS →
On May 28, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 61 km ENE of Pedro Bay, Alaska at 23:07 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 21 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 22:58:33 UTC
4.4mb
6 km SSE of Hasaki, Japan
35.679°, 140.865°
35.0 km---✓ ReviewedUSGS →
On May 28, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake 6 km SSE of Hasaki, Japan at 22:58 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 22:50:35 UTC
3.6md
Dominican Republic region
19.309°, -68.390°
61.0 km---✓ ReviewedUSGS →
May 28, 2023 brought a magnitude 3.6 earthquake in the Dominican Republic region, logged at 22:50 UTC. It arrived roughly 2 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 22:31:15 UTC
3.4md
134 km N of Suárez, Puerto Rico
19.643°, -65.738°
69.4 km---✓ ReviewedUSGS →
This magnitude 3.4 event was detected 134 km N of Suárez, Puerto Rico on May 28, 2023, with origin time 22:31 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 16 hours earlier. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 22:21:25 UTC
2.1ml
4 km SW of Volcano, Hawaii
19.415°, -155.261°
1.6 km---✓ ReviewedUSGS →
On May 28, 2023 at 22:21 UTC, a magnitude 2.1 earthquake struck 4 km SW of Volcano, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 17 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.
2023-05-28
2023-05-28 21:32:26 UTC
4.0mb
64 km SSW of Ashkāsham, Afghanistan
36.177°, 71.185°
101.2 km---✓ ReviewedUSGS →
May 28, 2023 brought a magnitude 4.0 earthquake 64 km SSW of Ashkāsham, Afghanistan, logged at 21:32 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 21:12:56 UTC
4.2mb
Celebes Sea
3.116°, 122.669°
520.4 km---✓ ReviewedUSGS →
On May 28, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake near Celebes Sea at 21:12 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.
2023-05-28
2023-05-28 21:12:31 UTC
2.0ml
21 km W of Port Lions, Alaska
57.862°, -153.243°
37.8 km---✓ ReviewedUSGS →
At 21:12 UTC on May 28, 2023, a magnitude 2.0 tremor occurred 21 km W of Port Lions, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 21:09:25 UTC
2.0ml
22 km W of Susitna, Alaska
61.571°, -150.928°
57.6 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.0 earthquake 22 km W of Susitna, Alaska at 21:09 UTC on May 28, 2023. It arrived roughly 16 hours after a larger magnitude 2.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 21:05:27 UTC
4.3mb
38 km NW of Poso, Indonesia
-1.117°, 120.544°
40.9 km---✓ ReviewedUSGS →
Reports of a magnitude 4.3 earthquake 38 km NW of Poso, Indonesia came in on May 28, 2023 at 21:05 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 21:00:29 UTC
3.7md
141 km NNE of Vieques, Puerto Rico
19.602°, -65.320°
33.0 km---✓ ReviewedUSGS →
A magnitude 3.7 seismic event took place 141 km NNE of Vieques, Puerto Rico on May 28, 2023 at 21:00 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 20:48:33 UTC
2.6ml
southern Idaho
44.758°, -114.403°
10.0 km---✓ ReviewedUSGS →
Reports of a magnitude 2.6 earthquake near southern Idaho came in on May 28, 2023 at 20:48 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 20:47:11 UTC
3.7md
71 km NNE of Luquillo, Puerto Rico
18.958°, -65.434°
21.0 km1--✓ ReviewedUSGS →
Reports of a magnitude 3.7 earthquake 71 km NNE of Luquillo, Puerto Rico came in on May 28, 2023 at 20:47 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 20:37:48 UTC
3.8md
88 km ENE of Miches, Dominican Republic
19.402°, -68.327°
42.0 km---✓ ReviewedUSGS →
At 20:37 UTC on May 28, 2023, a magnitude 3.8 tremor occurred 88 km ENE of Miches, Dominican Republic. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 20:27:23 UTC
2.3md
0 km SSW of Magas Arriba, Puerto Rico
18.012°, -66.771°
11.7 km---✓ ReviewedUSGS →
A magnitude 2.3 seismic event took place 0 km SSW of Magas Arriba, Puerto Rico on May 28, 2023 at 20:27 UTC. It arrived roughly 12 hours after a larger magnitude 2.6 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.
2023-05-28
2023-05-28 20:17:49 UTC
4.2mb
98 km WSW of Kurio, Japan
29.830°, 129.537°
127.4 km---✓ ReviewedUSGS →
At 20:17 UTC on May 28, 2023, a magnitude 4.2 tremor occurred 98 km WSW of Kurio, Japan. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 20:09:06 UTC
3.0md
38 km NW of Aguadilla, Puerto Rico
18.652°, -67.437°
12.5 km---✓ ReviewedUSGS →
On May 28, 2023, worldwide seismic activity registered a magnitude 3.0 earthquake 38 km NW of Aguadilla, Puerto Rico at 20:09 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 19:59:40 UTC
2.8ml
79 km SSE of King Cove, Alaska
54.379°, -161.953°
23.3 km---✓ ReviewedUSGS →
This magnitude 2.8 event was detected 79 km SSE of King Cove, Alaska on May 28, 2023, with origin time 19:59 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 19:57:12 UTC
4.3mb
Kermadec Islands, New Zealand
-29.997°, -177.625°
38.4 km---✓ ReviewedUSGS →
A magnitude 4.3 seismic event took place near Kermadec Islands, New Zealand on May 28, 2023 at 19:57 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 19:57:08 UTC
2.6ml
104 km SE of False Pass, Alaska
54.091°, -162.472°
28.4 km---✓ ReviewedUSGS →
A magnitude 2.6 seismic event took place 104 km SE of False Pass, Alaska on May 28, 2023 at 19:57 UTC. Coming 17 hours after a magnitude 3.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 19:46:53 UTC
4.5mb
Pacific-Antarctic Ridge
-55.291°, -128.089°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.5 seismic event took place near Pacific-Antarctic Ridge on May 28, 2023 at 19:46 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 19:08:21 UTC
4.9mb
10 km SSE of Huambo, Peru
-15.815°, -72.054°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.9 earthquake 10 km SSE of Huambo, Peru at 19:08 UTC on May 28, 2023. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 18:51:22 UTC
4.5mb
Eastern Xizang
28.672°, 91.476°
10.0 km---✓ ReviewedUSGS →
May 28, 2023 brought a magnitude 4.5 earthquake near Eastern Xizang, logged at 18:51 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 18:28:44 UTC
2.1ml
86 km SSE of Kokhanok, Alaska
58.759°, -154.040°
89.2 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.1 earthquake 86 km SSE of Kokhanok, Alaska at 18:28 UTC on May 28, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 18:21:11 UTC
4.2mb
Kermadec Islands region
-27.410°, -179.901°
456.5 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.2 earthquake in the Kermadec Islands region at 18:21 UTC on May 28, 2023. 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.
2023-05-28
2023-05-28 18:13:26 UTC
2.2ml
193 km WSW of Adak, Alaska
51.370°, -179.307°
23.3 km---✓ ReviewedUSGS →
This magnitude 2.2 event was detected 193 km WSW of Adak, Alaska on May 28, 2023, with origin time 18:13 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 18:05:09 UTC
5.1mb
Pacific-Antarctic Ridge
-58.368°, -139.906°
10.0 km---✓ ReviewedUSGS →
On May 28, 2023, worldwide seismic activity registered a magnitude 5.1 earthquake near Pacific-Antarctic Ridge at 18:05 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-05-28
2023-05-28 18:03:11 UTC
4.5mb
32 km SW of Tungor, Russia
53.154°, 142.671°
10.0 km---✓ ReviewedUSGS →
On May 28, 2023 at 18:03 UTC, a magnitude 4.5 earthquake struck 32 km SW of Tungor, Russia. The event was offshore. See the M4.5 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 28, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.