Earthquakes on July 21, 2020
328
EARTHQUAKES on July 21, 2020
24-hour UTC period · USGS data
LARGEST: M6.0 — Fiji region
605 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
42
M3.0–3.9
9
M2.0–2.9
65
M1.0–1.9
210
Activity Summary
328
Total earthquakes
~250
Daily average
Elevated
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
6.0
Fiji region
20:56 UTC · 605.2 km deep
5.0
south of the Fiji Islands
14:49 UTC · 172.5 km deep
4.9
46 km NE of Calama, Chile
18:02 UTC · 121.7 km deep
4.9
215 km NNE of Shi Yomi, India
06:18 UTC · 10.0 km deep
4.8
south of the Fiji Islands
23:52 UTC · 10.0 km deep
4.8
48 km SE of Koseda, Japan
08:54 UTC · 32.6 km deep
Felt by 1
4.8
124 km NW of Hihifo, Tonga
07:34 UTC · 10.0 km deep
4.8
143 km NW of Tobelo, Indonesia
07:27 UTC · 35.0 km deep
Earthquake Map — July 21, 2020
All Earthquakes — July 21, 2020
Showing 30 of 118 (filtered from 328)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-07-21 2020-07-21 23:52:15 UTC | 4.8mb | south of the Fiji Islands -22.429°, 175.823° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:52 UTC on July 21, 2020, a magnitude 4.8 tremor occurred south of the Fiji Islands. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 23:46:41 UTC | 4.6mb | central Mid-Atlantic Ridge 3.745°, -31.537° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020 at 23:46 UTC, a magnitude 4.6 earthquake struck near central Mid-Atlantic Ridge. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 23:39:16 UTC | 3.2ml | 3 km ESE of Rose Lodge, Oregon 44.993°, -123.842° | 44.0 km | 34 | III | - | ✓ Reviewed | USGS → |
A magnitude 3.2 seismic event took place 3 km ESE of Rose Lodge, Oregon on July 21, 2020 at 23:39 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 23:29:55 UTC | 3.0ml | 13 km SSE of Fern Forest, Hawaii 19.352°, -155.097° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020 at 23:29 UTC, a magnitude 3.0 earthquake struck 13 km SSE of Fern Forest, Hawaii. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 22:53:51 UTC | 2.0ml | 160 km S of Adak, Alaska 50.434°, -176.426° | 3.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 160 km S of Adak, Alaska on July 21, 2020 at 22:53 UTC. It arrived roughly 1 hours after a larger magnitude 2.7 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. | ||||||||
2020-07-21 2020-07-21 22:39:45 UTC | 2.2ml | 7 km ENE of P?hala, Hawaii 19.220°, -155.410° | 31.6 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.2 earthquake 7 km ENE of P?hala, Hawaii came in on July 21, 2020 at 22:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 5 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 22:37:06 UTC | 4.7mb | west of Macquarie Island -53.679°, 140.069° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place west of Macquarie Island on July 21, 2020 at 22:37 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 22:27:36 UTC | 2.7ml | 167 km S of Adak, Alaska 50.373°, -176.427° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 167 km S of Adak, Alaska on July 21, 2020, with origin time 22:27 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 21:41:54 UTC | 4.1mb | south of the Kermadec Islands -34.465°, -179.364° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place south of the Kermadec Islands on July 21, 2020 at 21:41 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 21:40:11 UTC | 4.6mb | 8 km NNE of Guaca, Colombia 6.952°, -72.835° | 173.3 km | 7 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 8 km NNE of Guaca, Colombia on July 21, 2020 at 21:40 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 21:33:10 UTC | 4.2mb | 136 km NNE of Laikit, Laikit II (Dimembe), Indonesia 2.693°, 125.251° | 163.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 136 km NNE of Laikit, Laikit II (Dimembe), Indonesia on July 21, 2020 at 21:33 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 21:21:47 UTC | 2.5md | 6 km SSW of Guánica, Puerto Rico 17.915°, -66.935° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
July 21, 2020 brought a magnitude 2.5 earthquake 6 km SSW of Guánica, Puerto Rico, logged at 21:21 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 2 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 21:04:32 UTC | 4.3mwr | 119 km N of Calama, Chile -21.392°, -68.749° | 102.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 119 km N of Calama, Chile at 21:04 UTC on July 21, 2020. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 20:56:25 UTC | 6.0mww | Fiji region -20.805°, -178.632° | 605.2 km | - | - | green | ✓ Reviewed | USGS → |
On July 21, 2020 at 20:56 UTC, a magnitude 6.0 earthquake struck in the Fiji region. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on July 21, 2020. See the M6.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 20:30:58 UTC | 3.0md | 5 km S of Guánica, Puerto Rico 17.924°, -66.913° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020, worldwide seismic activity registered a magnitude 3.0 earthquake 5 km S of Guánica, Puerto Rico at 20:30 UTC. Coming 1 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 M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 20:13:43 UTC | 2.1ml | 50 km NW of Atka, Alaska 52.531°, -174.697° | 186.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020 at 20:13 UTC, a magnitude 2.1 earthquake struck 50 km NW of Atka, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:57:23 UTC | 2.6ml | 30 km NW of Stanley, Idaho 44.428°, -115.188° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020, worldwide seismic activity registered a magnitude 2.6 earthquake 30 km NW of Stanley, Idaho at 19:57 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:17:53 UTC | 2.0ml | 29 km SW of Petersville, Alaska 62.303°, -151.147° | 162.5 km | - | - | - | Auto | USGS → |
July 21, 2020 brought a magnitude 2.0 earthquake 29 km SW of Petersville, Alaska, logged at 19:17 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:17:28 UTC | 3.2md | 3 km S of Indios, Puerto Rico 17.966°, -66.823° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.2 event was detected 3 km S of Indios, Puerto Rico on July 21, 2020, with origin time 19:17 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:09:21 UTC | 4.2mb | 28 km SSW of Huachichil, Mexico 24.971°, -100.927° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 28 km SSW of Huachichil, Mexico with origin time 19:09 UTC on July 21, 2020. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:07:38 UTC | 2.3ml | 60 km NW of Ninilchik, Alaska 60.423°, -152.455° | 100.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 60 km NW of Ninilchik, Alaska came in on July 21, 2020 at 19:07 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:03:23 UTC | 2.0md | 1 km SE of P?hala, Hawaii 19.194°, -155.472° | 31.5 km | - | - | - | Auto | USGS → |
On July 21, 2020 at 19:03 UTC, a magnitude 2.0 earthquake struck 1 km SE of P?hala, Hawaii. Coming 2 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 19:02:54 UTC | 4.4mb | 24 km ESE of Hihifo, Tonga -16.047°, -173.587° | 114.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 24 km ESE of Hihifo, Tonga on July 21, 2020 at 19:02 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:49:11 UTC | 4.1mb | 117 km NE of Lospalos, Timor Leste -7.700°, 127.675° | 169.4 km | - | - | - | ✓ Reviewed | USGS → |
July 21, 2020 brought a magnitude 4.1 earthquake 117 km NE of Lospalos, Timor Leste, logged at 18:49 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:41:29 UTC | 2.0ml | 21 km NNE of Skwentna, Alaska 62.176°, -151.281° | 77.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 21 km NNE of Skwentna, Alaska on July 21, 2020 at 18:41 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:33:52 UTC | 4.4mb | 112 km NE of Hihifo, Tonga -15.114°, -173.210° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 21, 2020 brought a magnitude 4.4 earthquake 112 km NE of Hihifo, Tonga, logged at 18:33 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:30:03 UTC | 4.2mb | 158 km E of Kokopo, Papua New Guinea -4.433°, 153.698° | 85.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 21, 2020, worldwide seismic activity registered a magnitude 4.2 earthquake 158 km E of Kokopo, Papua New Guinea at 18:30 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:14:51 UTC | 2.7md | 9 km S of Indios, Puerto Rico 17.905°, -66.831° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 9 km S of Indios, Puerto Rico with origin time 18:14 UTC on July 21, 2020. Coming 5 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-21 2020-07-21 18:03:44 UTC | 2.1ml | 8 km ENE of P?hala, Hawaii 19.233°, -155.400° | 31.8 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 8 km ENE of P?hala, Hawaii on July 21, 2020 at 18:03 UTC. Coming 1 hours after a magnitude 2.6 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. | ||||||||
2020-07-21 2020-07-21 18:02:00 UTC | 4.9mww | 46 km NE of Calama, Chile -22.198°, -68.569° | 121.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 46 km NE of Calama, Chile with origin time 18:02 UTC on July 21, 2020. The event was offshore. See the M4.9 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, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.