Earthquakes on July 21, 2025
489
EARTHQUAKES on July 21, 2025
24-hour UTC period · USGS data
94 km deep · 16 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
10
M4.0–4.9
135
M3.0–3.9
20
M2.0–2.9
105
M1.0–1.9
219
Activity Summary
489
Total earthquakes
~250
Daily average
Elevated
Activity level
10
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
94 km ENE of Kainantu, Papua New Guinea
16:41 UTC · 94.0 km deep
Felt by 16
5.2
152 km ESE of Petropavlovsk-Kamchatsky, Russia
15:14 UTC · 17.6 km deep
5.2
145 km SE of Petropavlovsk-Kamchatsky, Russia
10:36 UTC · 10.0 km deep
5.2
146 km ESE of Petropavlovsk-Kamchatsky, Russia
10:25 UTC · 37.8 km deep
5.1
135 km ESE of Petropavlovsk-Kamchatsky, Russia
16:20 UTC · 10.0 km deep
5.0
275 km WSW of Adak, Alaska
19:07 UTC · 49.6 km deep
5.0
156 km SE of Petropavlovsk-Kamchatsky, Russia
16:50 UTC · 26.6 km deep
5.0
170 km ESE of Petropavlovsk-Kamchatsky, Russia
14:37 UTC · 10.0 km deep
Earthquake Map — July 21, 2025
All Earthquakes — July 21, 2025
Showing 30 of 270 (filtered from 489)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-07-21 2025-07-21 23:51:33 UTC | 2.2ml | 88 km SSE of Sand Point, Alaska 54.563°, -160.212° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025 at 23:51 UTC, a magnitude 2.2 earthquake struck 88 km SSE of Sand Point, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 15 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 23:33:28 UTC | 2.1ml | 90 km SSE of Sand Point, Alaska 54.569°, -160.039° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 90 km SSE of Sand Point, Alaska on July 21, 2025, with origin time 23:33 UTC. Coming 15 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 23:28:02 UTC | 4.4mb | Auckland Islands, New Zealand region -49.005°, 164.420° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place in the Auckland Islands, New Zealand region on July 21, 2025 at 23:28 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 23:20:32 UTC | 4.2mwr | 94 km ENE of Diego de Almagro, Chile -26.155°, -69.134° | 100.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 94 km ENE of Diego de Almagro, Chile on July 21, 2025, with origin time 23:20 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 23:02:46 UTC | 2.7ml | 184 km SSW of Adak, Alaska 50.303°, -177.470° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 184 km SSW of Adak, Alaska came in on July 21, 2025 at 23:02 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 23:00:47 UTC | 4.3mb | 175 km ESE of Petropavlovsk-Kamchatsky, Russia 52.774°, 161.191° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025, worldwide seismic activity registered a magnitude 4.3 earthquake 175 km ESE of Petropavlovsk-Kamchatsky, Russia at 23:00 UTC. It arrived roughly 6 hours after a larger magnitude 4.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:57:16 UTC | 4.9mb | north of Ascension Island -4.335°, -12.180° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025 at 22:57 UTC, a magnitude 4.9 earthquake struck north of Ascension Island. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:41:23 UTC | 2.3ml | 98 km SSE of Sand Point, Alaska 54.549°, -159.814° | 24.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 98 km SSE of Sand Point, Alaska on July 21, 2025, with origin time 22:41 UTC. Coming 13 hours after a magnitude 3.2 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. | ||||||||
2025-07-21 2025-07-21 22:40:52 UTC | 2.5md | 2 km ENE of Ponce, Puerto Rico 18.022°, -66.601° | 16.1 km | - | - | - | ✓ Reviewed | USGS → |
At 22:40 UTC on July 21, 2025, a magnitude 2.5 tremor occurred 2 km ENE of Ponce, Puerto Rico. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:37:59 UTC | 2.3ml | 103 km S of Sand Point, Alaska 54.419°, -160.195° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 103 km S of Sand Point, Alaska came in on July 21, 2025 at 22:37 UTC. It arrived roughly 14 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:35:17 UTC | 4.6mb | 89 km E of Kimbe, Papua New Guinea -5.465°, 150.938° | 103.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 89 km E of Kimbe, Papua New Guinea on July 21, 2025 at 22:35 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:26:04 UTC | 4.2mb | 77 km ENE of Maych’ew, Ethiopia 12.925°, 40.240° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 77 km ENE of Maych’ew, Ethiopia came in on July 21, 2025 at 22:26 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:24:56 UTC | 4.3mb | 56 km WNW of Te Anau, New Zealand -45.171°, 167.090° | 40.5 km | - | - | - | ✓ Reviewed | USGS → |
At 22:24 UTC on July 21, 2025, a magnitude 4.3 tremor occurred 56 km WNW of Te Anau, New Zealand. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:24:14 UTC | 2.1ml | Rat Islands, Aleutian Islands, Alaska 51.938°, 177.768° | 5.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake near Rat Islands, Aleutian Islands, Alaska came in on July 21, 2025 at 22:24 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:20:30 UTC | 3.0md | 96 km N of Brenas, Puerto Rico 19.332°, -66.258° | 26.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place 96 km N of Brenas, Puerto Rico on July 21, 2025 at 22:20 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:18:58 UTC | 4.5mb | north of Ascension Island -4.061°, -12.010° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake north of Ascension Island with origin time 22:18 UTC on July 21, 2025. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:14:43 UTC | 2.1ml | 92 km SSE of Sand Point, Alaska 54.547°, -160.061° | 24.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 92 km SSE of Sand Point, Alaska on July 21, 2025 at 22:14 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 14 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:13:25 UTC | 4.0mb | 184 km SE of Vilyuchinsk, Russia 51.775°, 160.337° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 21, 2025 brought a magnitude 4.0 earthquake 184 km SE of Vilyuchinsk, Russia, logged at 22:13 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.5 earthquake that occurred about 8 hours earlier. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:11:49 UTC | 4.2mb | 150 km S of Mata-Utu, Wallis and Futuna -14.634°, -176.063° | 315.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 150 km S of Mata-Utu, Wallis and Futuna on July 21, 2025 at 22:11 UTC. 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. | ||||||||
2025-07-21 2025-07-21 22:07:56 UTC | 4.3mb | 157 km E of Petropavlovsk-Kamchatsky, Russia 53.115°, 160.971° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 157 km E of Petropavlovsk-Kamchatsky, Russia at 22:07 UTC on July 21, 2025. Coming 10 hours after a magnitude 4.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:06:29 UTC | 4.3mb | 175 km ESE of Petropavlovsk-Kamchatsky, Russia 52.224°, 160.821° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 175 km ESE of Petropavlovsk-Kamchatsky, Russia on July 21, 2025, with origin time 22:06 UTC. It arrived roughly 7 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:02:35 UTC | 4.2mb | western Indian-Antarctic Ridge -49.333°, 124.922° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 21, 2025 brought a magnitude 4.2 earthquake near western Indian-Antarctic Ridge, logged at 22:02 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:02:23 UTC | 2.8ml | 144 km SW of Nikolski, Alaska 52.188°, -170.595° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025 at 22:02 UTC, a magnitude 2.8 earthquake struck 144 km SW of Nikolski, Alaska. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:01:27 UTC | 4.3mb | 163 km ESE of Petropavlovsk-Kamchatsky, Russia 52.425°, 160.816° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 163 km ESE of Petropavlovsk-Kamchatsky, Russia came in on July 21, 2025 at 22:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.2 earthquake that occurred about 7 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:00:57 UTC | 4.3mb | 21 km ENE of Akita, Japan 39.814°, 140.328° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 21 km ENE of Akita, Japan on July 21, 2025 at 22:00 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 22:00:30 UTC | 4.0mb | 114 km ESE of Petropavlovsk-Kamchatsky, Russia 52.739°, 160.237° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025 at 22:00 UTC, a magnitude 4.0 earthquake struck 114 km ESE of Petropavlovsk-Kamchatsky, Russia. Coming 9 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 21:53:20 UTC | 2.8ml | 99 km SSE of Sand Point, Alaska 54.471°, -160.099° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 99 km SSE of Sand Point, Alaska on July 21, 2025 at 21:53 UTC. It arrived roughly 13 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 21:44:59 UTC | 2.2ml | 94 km SSE of Sand Point, Alaska 54.542°, -159.958° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 94 km SSE of Sand Point, Alaska on July 21, 2025 at 21:44 UTC. Coming 13 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 21:41:04 UTC | 4.5mb | western Indian-Antarctic Ridge -48.590°, 124.722° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025, worldwide seismic activity registered a magnitude 4.5 earthquake near western Indian-Antarctic Ridge at 21:41 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-07-21 2025-07-21 21:16:59 UTC | 4.2mb | 186 km SE of Petropavlovsk-Kamchatsky, Russia 51.820°, 160.460° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2025 at 21:16 UTC, a magnitude 4.2 earthquake struck 186 km SE of Petropavlovsk-Kamchatsky, Russia. This event falls inside the aftershock decay of a nearby magnitude 4.4 earthquake that occurred about 13 hours earlier. The event was offshore. See the M4.2 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 21, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.