Earthquakes on July 20, 2020
342
EARTHQUAKES on July 20, 2020
24-hour UTC period · USGS data
LARGEST: M5.2 — South Sandwich Islands region
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
43
M3.0–3.9
14
M2.0–2.9
60
M1.0–1.9
222
Activity Summary
342
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.2
South Sandwich Islands region
03:08 UTC · 10.0 km deep
5.1
South Sandwich Islands region
23:07 UTC · 56.0 km deep
5.1
92 km WSW of Santiago de Cao, Peru
01:50 UTC · 32.0 km deep
Felt by 3
4.9
213 km NNE of Shi Yomi, India
19:21 UTC · 10.0 km deep
4.9
south of the Kermadec Islands
16:25 UTC · 10.0 km deep
4.9
116 km NW of Hihifo, Tonga
09:07 UTC · 10.0 km deep
4.9
55 km S of Hirara, Japan
05:25 UTC · 16.1 km deep
4.8
165 km WNW of Hihifo, Tonga
23:58 UTC · 10.0 km deep
Earthquake Map — July 20, 2020
All Earthquakes — July 20, 2020
Showing 30 of 120 (filtered from 342)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-07-20 2020-07-20 23:58:40 UTC | 4.8mb | 165 km WNW of Hihifo, Tonga -15.407°, -175.231° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 165 km WNW of Hihifo, Tonga came in on July 20, 2020 at 23:58 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 23:56:03 UTC | 2.0ml | 7 km N of Healy, Alaska 63.923°, -148.986° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020, worldwide seismic activity registered a magnitude 2.0 earthquake 7 km N of Healy, Alaska at 23:56 UTC. 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. | ||||||||
2020-07-20 2020-07-20 23:34:35 UTC | 2.4md | 5 km ESE of La Parguera, Puerto Rico 17.954°, -66.996° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:34 UTC on July 20, 2020, a magnitude 2.4 tremor occurred 5 km ESE of La Parguera, Puerto Rico. It arrived roughly 21 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 23:07:10 UTC | 5.1mww | South Sandwich Islands region -57.958°, -25.747° | 56.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.1 earthquake was recorded in the South Sandwich Islands region on July 20, 2020 at 23:07 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:52:49 UTC | 4.5mb | 242 km ENE of Port Blair, India 12.157°, 94.912° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake 242 km ENE of Port Blair, India at 22:52 UTC on July 20, 2020. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:50:04 UTC | 3.1md | 9 km S of Guánica, Puerto Rico 17.889°, -66.922° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020, worldwide seismic activity registered a magnitude 3.1 earthquake 9 km S of Guánica, Puerto Rico at 22:50 UTC. Coming 20 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 M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:45:05 UTC | 2.8md | 5 km S of Guánica, Puerto Rico 17.924°, -66.917° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 5 km S of Guánica, Puerto Rico on July 20, 2020, with origin time 22:45 UTC. It arrived roughly 20 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:39:42 UTC | 2.2ml | 69 km ESE of Dawson City, Canada 63.830°, -138.116° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 69 km ESE of Dawson City, Canada on July 20, 2020 at 22:39 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:35:26 UTC | 2.0ml | 56 km E of Juneau, Alaska 58.344°, -133.466° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:35 UTC on July 20, 2020, a magnitude 2.0 tremor occurred 56 km E of Juneau, Alaska. It arrived roughly 22 hours after a larger magnitude 2.3 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. | ||||||||
2020-07-20 2020-07-20 22:35:03 UTC | 2.1md | 3 km ENE of Pole Ojea, Puerto Rico 17.982°, -67.151° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 3 km ENE of Pole Ojea, Puerto Rico on July 20, 2020, with origin time 22:35 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 20 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:18:40 UTC | 2.1md | 16km NW of Truckee, CA 39.436°, -120.297° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 16km NW of Truckee, CA on July 20, 2020 at 22:18 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 22:01:53 UTC | 3.6ml | 10km W of Grapevine, CA 34.932°, -119.038° | 13.6 km | 117 | IV | - | ✓ Reviewed | USGS → |
A magnitude 3.6 seismic event took place 10km W of Grapevine, CA on July 20, 2020 at 22:01 UTC. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 21:38:48 UTC | 3.1md | 7 km WSW of Fuig, Puerto Rico 17.958°, -66.975° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.1 earthquake 7 km WSW of Fuig, Puerto Rico came in on July 20, 2020 at 21:38 UTC. It arrived roughly 19 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 21:38:18 UTC | 4.4mb | 55 km NE of Isangel, Vanuatu -19.229°, 169.689° | 259.1 km | - | - | - | ✓ Reviewed | USGS → |
July 20, 2020 brought a magnitude 4.4 earthquake 55 km NE of Isangel, Vanuatu, logged at 21:38 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 21:34:13 UTC | 3.9mb | 91 km W of El Aguilar, Argentina -23.120°, -66.570° | 208.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.9 event was detected 91 km W of El Aguilar, Argentina on July 20, 2020, with origin time 21:34 UTC. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 20:58:26 UTC | 2.5ml | 26 km NW of Stanley, Idaho 44.387°, -115.175° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 26 km NW of Stanley, Idaho with origin time 20:58 UTC on July 20, 2020. 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. | ||||||||
2020-07-20 2020-07-20 20:39:51 UTC | 2.0md | 7 km ENE of P?hala, Hawaii 19.218°, -155.408° | 32.5 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 7 km ENE of P?hala, Hawaii at 20:39 UTC on July 20, 2020. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 14 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 20:33:53 UTC | 4.2mwr | 89 km N of Taltal, Chile -24.601°, -70.501° | 43.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 89 km N of Taltal, Chile at 20:33 UTC on July 20, 2020. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 20:05:32 UTC | 4.5mb | 42 km W of Kirakira, Solomon Islands -10.430°, 161.534° | 95.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 42 km W of Kirakira, Solomon Islands on July 20, 2020, with origin time 20:05 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 20:04:32 UTC | 3.4ml | 13 km SE of Wright, Wyoming 43.678°, -105.364° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
July 20, 2020 brought a magnitude 3.4 earthquake 13 km SE of Wright, Wyoming, logged at 20:04 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 20:03:54 UTC | 2.6md | 6 km SSE of Guánica, Puerto Rico 17.917°, -66.885° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 20, 2020 brought a magnitude 2.6 earthquake 6 km SSE of Guánica, Puerto Rico, logged at 20:03 UTC. It arrived roughly 17 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:47:59 UTC | 2.0ml | 30 km SSE of Mina, Nevada 38.151°, -117.948° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 30 km SSE of Mina, Nevada on July 20, 2020, with origin time 19:47 UTC. Coming 16 hours after a magnitude 2.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:30:07 UTC | 4.1mb | 74 km NNE of Calama, Chile -21.877°, -68.567° | 127.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 74 km NNE of Calama, Chile on July 20, 2020, with origin time 19:30 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:28:00 UTC | 2.8ml | 40 km NE of Punta Cana, Dominican Republic 18.849°, -68.144° | 49.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020, worldwide seismic activity registered a magnitude 2.8 earthquake 40 km NE of Punta Cana, Dominican Republic at 19:28 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:26:18 UTC | 2.6md | 6 km SE of La Parguera, Puerto Rico 17.938°, -66.998° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020 at 19:26 UTC, a magnitude 2.6 earthquake struck 6 km SE of La Parguera, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:21:39 UTC | 4.9mb | 213 km NNE of Shi Yomi, India 30.405°, 94.862° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020, worldwide seismic activity registered a magnitude 4.9 earthquake 213 km NNE of Shi Yomi, India at 19:21 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:10:29 UTC | 2.4md | 10 km SSE of Guánica, Puerto Rico 17.884°, -66.869° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 20, 2020, worldwide seismic activity registered a magnitude 2.4 earthquake 10 km SSE of Guánica, Puerto Rico at 19:10 UTC. Coming 16 hours after a magnitude 3.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:09:40 UTC | 4.2mb | 86 km SSW of Puerto El Triunfo, El Salvador 12.634°, -88.992° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 86 km SSW of Puerto El Triunfo, El Salvador on July 20, 2020, with origin time 19:09 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 19:04:49 UTC | 2.3ml | 124 km NW of Arctic Village, Alaska 68.920°, -147.665° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
At 19:04 UTC on July 20, 2020, a magnitude 2.3 tremor occurred 124 km NW of Arctic Village, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-20 2020-07-20 18:48:12 UTC | 2.6md | 2 km S of Magas Arriba, Puerto Rico 17.994°, -66.769° | 4.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 2 km S of Magas Arriba, Puerto Rico on July 20, 2020 at 18:48 UTC. Coming 16 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
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 20, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.