Earthquakes on July 3, 2021
244
EARTHQUAKES on July 3, 2021
24-hour UTC period · USGS data
LARGEST: M5.8 — southeast Indian Ridge
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
24
M3.0–3.9
17
M2.0–2.9
45
M1.0–1.9
153
Activity Summary
244
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Significant Earthquakes (M4.5+)
5.8
southeast Indian Ridge
11:58 UTC · 10.0 km deep
5.6
Owen Fracture Zone region
17:04 UTC · 10.0 km deep
05.1
Owen Fracture Zone region
17:12 UTC · 10.0 km deep
5.1
47 km SSE of Bengkulu, Indonesia
13:09 UTC · 56.1 km deep
Felt by 1
5.0
Pacific-Antarctic Ridge
16:11 UTC · 10.0 km deep
4.7
Balleny Islands region
22:32 UTC · 10.0 km deep
4.7
81 km SSW of Unalaska, Alaska
13:42 UTC · 46.6 km deep
Felt by 3
4.7
Mid-Indian Ridge
02:27 UTC · 10.0 km deep
Earthquake Map — July 3, 2021
All Earthquakes — July 3, 2021
Showing 30 of 91 (filtered from 244)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-07-03 2021-07-03 23:35:05 UTC | 2.5ml | Rat Islands, Aleutian Islands, Alaska 51.849°, 178.526° | 115.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:35 UTC on July 3, 2021, a magnitude 2.5 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 23:23:51 UTC | 3.7mw | 2km WSW of Los Banos, CA 37.052°, -120.875° | 5.8 km | 143 | III | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded 2km WSW of Los Banos, CA on July 3, 2021 at 23:23 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 23:15:38 UTC | 4.4mb | 94 km SW of Isangel, Vanuatu -20.182°, 168.682° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 3, 2021, worldwide seismic activity registered a magnitude 4.4 earthquake 94 km SW of Isangel, Vanuatu at 23:15 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 23:10:53 UTC | 3.3ml | 4 km S of P?hala, Hawaii 19.164°, -155.482° | 34.0 km | 9 | III | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 4 km S of P?hala, Hawaii on July 3, 2021 at 23:10 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 22:57:03 UTC | 2.9ml | 28 km SSE of Wright, Wyoming 43.503°, -105.416° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 28 km SSE of Wright, Wyoming came in on July 3, 2021 at 22:57 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. | ||||||||
2021-07-03 2021-07-03 22:32:58 UTC | 4.7mb | Balleny Islands region -64.555°, 175.903° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake in the Balleny Islands region at 22:32 UTC on July 3, 2021. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 22:31:24 UTC | 2.0ml | 25 km SSE of Mina, Nevada 38.168°, -118.034° | 1.8 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 25 km SSE of Mina, Nevada at 22:31 UTC on July 3, 2021. 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. | ||||||||
2021-07-03 2021-07-03 22:22:04 UTC | 2.4ml | 104 km WNW of Adak, Alaska 52.185°, -178.077° | 246.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 104 km WNW of Adak, Alaska came in on July 3, 2021 at 22:22 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 21:51:27 UTC | 2.5md | 3 km W of Fuig, Puerto Rico 17.983°, -66.953° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 3, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 3 km W of Fuig, Puerto Rico at 21:51 UTC. It arrived roughly 20 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 21:32:52 UTC | 4.5mb | Banda Sea -6.864°, 129.935° | 124.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 3, 2021 at 21:32 UTC, a magnitude 4.5 earthquake struck near Banda Sea. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 21:24:04 UTC | 2.1ml | 39 km NNW of Toyah, Texas 31.616°, -104.016° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
July 3, 2021 brought a magnitude 2.1 earthquake 39 km NNW of Toyah, Texas, logged at 21:24 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 21:05:21 UTC | 2.4ml | 3 km S of P?hala, Hawaii 19.169°, -155.474° | 35.8 km | 1 | - | - | Auto | USGS → |
A magnitude 2.4 seismic event took place 3 km S of P?hala, Hawaii on July 3, 2021 at 21:05 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:52:05 UTC | 2.3md | 4 km SE of P?hala, Hawaii 19.177°, -155.447° | 34.3 km | - | - | - | Auto | USGS → |
On July 3, 2021 at 20:52 UTC, a magnitude 2.3 earthquake struck 4 km SE of P?hala, Hawaii. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:51:57 UTC | 2.0md | 3km SSW of San Juan Bautista, CA 36.817°, -121.546° | 5.6 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 3km SSW of San Juan Bautista, CA on July 3, 2021 at 20:51 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:40:10 UTC | 2.0ml | 39 km NNW of Toyah, Texas 31.616°, -104.012° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 39 km NNW of Toyah, Texas on July 3, 2021, with origin time 20:40 UTC. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:38:06 UTC | 2.0ml | 75 km SSW of Unalaska, Alaska 53.215°, -166.807° | 33.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 75 km SSW of Unalaska, Alaska came in on July 3, 2021 at 20:38 UTC. It arrived roughly 7 hours after a larger magnitude 4.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:31:28 UTC | 2.9md | 3 km W of Fuig, Puerto Rico 17.986°, -66.951° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 3 km W of Fuig, Puerto Rico on July 3, 2021 at 20:31 UTC. It arrived roughly 19 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:30:33 UTC | 4.3mb | Fiji region -21.747°, -177.106° | 245.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake in the Fiji region at 20:30 UTC on July 3, 2021. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 20:22:39 UTC | 2.6ml | 23 km WSW of Akutan, Alaska 54.072°, -166.118° | 110.1 km | - | - | - | ✓ Reviewed | USGS → |
July 3, 2021 brought a magnitude 2.6 earthquake 23 km WSW of Akutan, Alaska, logged at 20:22 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 19:33:55 UTC | 4.1mb | 224 km SSE of Katabu, Indonesia -6.644°, 123.615° | 632.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake 224 km SSE of Katabu, Indonesia at 19:33 UTC on July 3, 2021. 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. | ||||||||
2021-07-03 2021-07-03 19:06:08 UTC | 4.2mb | 47 km ENE of Ishinomaki, Japan 38.636°, 141.764° | 70.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 47 km ENE of Ishinomaki, Japan on July 3, 2021 at 19:06 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 18:41:39 UTC | 3.8mb | 63 km W of Nikolski, Alaska 53.048°, -169.784° | 136.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 3, 2021 at 18:41 UTC, a magnitude 3.8 earthquake struck 63 km W of Nikolski, Alaska. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 18:22:26 UTC | 2.6ml | 12 km SSE of Volcano, Hawaii 19.336°, -155.193° | 1.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 12 km SSE of Volcano, Hawaii on July 3, 2021 at 18:22 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 18:16:19 UTC | 3.0ml | 254 km SE of Attu Station, Alaska 51.466°, 176.155° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 254 km SE of Attu Station, Alaska with origin time 18:16 UTC on July 3, 2021. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 18:01:39 UTC | 3.4ml | 46 km NNE of Adak, Alaska 52.275°, -176.459° | 197.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.4 earthquake 46 km NNE of Adak, Alaska came in on July 3, 2021 at 18:01 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 17:19:53 UTC | 4.4mb | 48 km SSE of Shizunai-furukawach?, Japan 41.911°, 142.514° | 55.5 km | - | - | - | ✓ Reviewed | USGS → |
At 17:19 UTC on July 3, 2021, a magnitude 4.4 tremor occurred 48 km SSE of Shizunai-furukawach?, Japan. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 17:12:22 UTC | 5.1mb | Owen Fracture Zone region 14.276°, 56.742° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.1 earthquake in the Owen Fracture Zone region with origin time 17:12 UTC on July 3, 2021. Coming 1 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 17:04:27 UTC | 5.6mww | Owen Fracture Zone region 14.279°, 56.767° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
A magnitude 5.6 earthquake was recorded in the Owen Fracture Zone region on July 3, 2021 at 17:04 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 17:02:16 UTC | 4.5mb | 245 km ESE of Tadine, New Caledonia -22.216°, 170.147° | 20.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 245 km ESE of Tadine, New Caledonia on July 3, 2021 at 17:02 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-03 2021-07-03 17:01:02 UTC | 2.5ml | 4 km S of Wright, Wyoming 43.706°, -105.493° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 4 km S of Wright, Wyoming at 17:01 UTC on July 3, 2021. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 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 July 3, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.