Earthquakes on June 20, 2021
226
EARTHQUAKES on June 20, 2021
24-hour UTC period · USGS data
LARGEST: M6.5 — Kermadec Islands, New Zealand
25 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
37
M3.0–3.9
8
M2.0–2.9
50
M1.0–1.9
127
Activity Summary
226
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
6.5
Kermadec Islands, New Zealand
17:05 UTC · 25.0 km deep
5.4
Kermadec Islands, New Zealand
17:24 UTC · 10.0 km deep
5.3
29 km NE of Shimo-furano, Japan
11:08 UTC · 151.9 km deep
5.2
Balleny Islands region
11:49 UTC · 10.0 km deep
4.9
26 km SSW of Hualien City, Taiwan
14:50 UTC · 11.1 km deep
4.9
South Sandwich Islands region
07:06 UTC · 10.0 km deep
4.8
South Sandwich Islands region
20:04 UTC · 10.0 km deep
4.8
Kermadec Islands region
15:36 UTC · 10.0 km deep
Earthquake Map — June 20, 2021
All Earthquakes — June 20, 2021
Showing 30 of 99 (filtered from 226)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-06-20 2021-06-20 23:30:55 UTC | 2.4ml | 27 km NW of Stanley, Idaho 44.398°, -115.177° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 27 km NW of Stanley, Idaho came in on June 20, 2021 at 23:30 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 23:27:39 UTC | 2.9md | 2 km NNE of Levittown, Puerto Rico 18.470°, -66.170° | 79.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 2 km NNE of Levittown, Puerto Rico on June 20, 2021 at 23:27 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 23:11:33 UTC | 2.4ml | 1 km ENE of Quinton, Oklahoma 35.126°, -95.356° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
June 20, 2021 brought a magnitude 2.4 earthquake 1 km ENE of Quinton, Oklahoma, logged at 23:11 UTC. It arrived roughly 1 hours after a larger magnitude 2.6 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. | ||||||||
2021-06-20 2021-06-20 22:41:43 UTC | 2.6ml | 2 km E of Quinton, Oklahoma 35.124°, -95.349° | 7.4 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 2 km E of Quinton, Oklahoma on June 20, 2021, with origin time 22:41 UTC. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 22:24:06 UTC | 4.6mb | Kermadec Islands, New Zealand -30.482°, -178.081° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 20, 2021 at 22:24 UTC, a magnitude 4.6 earthquake struck near Kermadec Islands, New Zealand. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 22:11:49 UTC | 4.1mb | 79 km WSW of Las Grullas Margen Derecha, Mexico 25.703°, -110.103° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 79 km WSW of Las Grullas Margen Derecha, Mexico on June 20, 2021, with origin time 22:11 UTC. It arrived roughly 11 hours after a larger magnitude 4.6 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 21:57:23 UTC | 2.2ml | 32 km NW of Valdez, Alaska 61.372°, -146.699° | 12.5 km | - | - | - | Auto | USGS → |
June 20, 2021 brought a magnitude 2.2 earthquake 32 km NW of Valdez, Alaska, logged at 21:57 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 21:51:12 UTC | 4.7mb | Kermadec Islands, New Zealand -29.569°, -177.839° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place near Kermadec Islands, New Zealand on June 20, 2021 at 21:51 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 21:38:03 UTC | 2.5ml | Alaska Peninsula 54.760°, -162.585° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake near Alaska Peninsula with origin time 21:38 UTC on June 20, 2021. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 21:34:35 UTC | 2.2ml | 3 km ENE of P?hala, Hawaii 19.212°, -155.448° | 35.1 km | - | - | - | Auto | USGS → |
At 21:34 UTC on June 20, 2021, a magnitude 2.2 tremor occurred 3 km ENE of P?hala, Hawaii. Coming 2 hours after a magnitude 3.0 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. | ||||||||
2021-06-20 2021-06-20 20:58:55 UTC | 4.6mb | 206 km S of Kokopo, Papua New Guinea -6.200°, 152.050° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 206 km S of Kokopo, Papua New Guinea on June 20, 2021 at 20:58 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 20:49:46 UTC | 4.4mb | 67 km E of Vallenar, Chile -28.586°, -70.071° | 115.8 km | - | - | - | ✓ Reviewed | USGS → |
June 20, 2021 brought a magnitude 4.4 earthquake 67 km E of Vallenar, Chile, logged at 20:49 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 20:26:51 UTC | 4.3mb | South Sandwich Islands region -55.263°, -29.183° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:26 UTC on June 20, 2021, a magnitude 4.3 tremor occurred in the South Sandwich Islands region. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 20:04:24 UTC | 4.8mb | South Sandwich Islands region -55.239°, -30.820° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected in the South Sandwich Islands region on June 20, 2021, with origin time 20:04 UTC. It arrived roughly 13 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 19:12:15 UTC | 3.0ml | 3 km ENE of P?hala, Hawaii 19.215°, -155.444° | 33.7 km | - | - | - | ✓ Reviewed | USGS → |
On June 20, 2021 at 19:12 UTC, a magnitude 3.0 earthquake struck 3 km ENE of P?hala, Hawaii. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:43:22 UTC | 2.5md | 3 km ESE of La Parguera, Puerto Rico 17.960°, -67.018° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
June 20, 2021 brought a magnitude 2.5 earthquake 3 km ESE of La Parguera, Puerto Rico, logged at 18:43 UTC. Coming 2 hours after a magnitude 3.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:37:17 UTC | 2.2ml | 5 km WNW of Lucien, Oklahoma 36.285°, -97.514° | 7.5 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 5 km WNW of Lucien, Oklahoma came in on June 20, 2021 at 18:37 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:07:08 UTC | 2.1md | 3 km S of Indios, Puerto Rico 17.959°, -66.814° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 3 km S of Indios, Puerto Rico on June 20, 2021, with origin time 18:07 UTC. Coming 7 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:05:19 UTC | 2.4md | 4 km SE of La Parguera, Puerto Rico 17.948°, -67.016° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 4 km SE of La Parguera, Puerto Rico on June 20, 2021, with origin time 18:05 UTC. It arrived roughly 2 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 M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:02:47 UTC | 2.0md | 4 km SSE of La Parguera, Puerto Rico 17.937°, -67.026° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 20, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 4 km SSE of La Parguera, Puerto Rico at 18:02 UTC. It arrived roughly 2 hours after a larger magnitude 3.2 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. | ||||||||
2021-06-20 2021-06-20 18:01:31 UTC | 3.0md | 4 km SSE of La Parguera, Puerto Rico 17.936°, -67.027° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 4 km SSE of La Parguera, Puerto Rico on June 20, 2021, with origin time 18:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 2 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 18:00:40 UTC | 2.0ml | 9 km WSW of Volcano, Hawaii 19.408°, -155.318° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:00 UTC on June 20, 2021, a magnitude 2.0 tremor occurred 9 km WSW of Volcano, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 13 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 17:57:14 UTC | 2.1ml | 13 km WSW of McKinley Park, Alaska 63.674°, -149.144° | 0.3 km | - | - | - | Auto | USGS → |
On June 20, 2021 at 17:57 UTC, a magnitude 2.1 earthquake struck 13 km WSW of McKinley Park, Alaska. 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. | ||||||||
2021-06-20 2021-06-20 17:45:32 UTC | 2.0ml | 68 km ESE of Denali National Park, Alaska 63.203°, -150.571° | 120.0 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place 68 km ESE of Denali National Park, Alaska on June 20, 2021 at 17:45 UTC. Coming 15 hours after a magnitude 3.0 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. | ||||||||
2021-06-20 2021-06-20 17:24:35 UTC | 5.4mww | Kermadec Islands, New Zealand -30.168°, -177.822° | 10.0 km | - | II | green | ✓ Reviewed | USGS → |
A magnitude 5.4 earthquake was recorded near Kermadec Islands, New Zealand on June 20, 2021 at 17:24 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.5 earthquake that occurred about 1 hours earlier. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 17:18:21 UTC | 4.5mb | Kermadec Islands, New Zealand -30.379°, -177.758° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake near Kermadec Islands, New Zealand came in on June 20, 2021 at 17:18 UTC. Coming 1 hours after a magnitude 6.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 17:05:50 UTC | 6.5mww | Kermadec Islands, New Zealand -30.216°, -177.845° | 25.0 km | - | III | green | ✓ Reviewed | USGS → |
On June 20, 2021 at 17:05 UTC, a magnitude 6.5 earthquake struck near Kermadec Islands, New Zealand. A tsunami evaluation was automatically initiated given the magnitude and location. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M6.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 16:46:57 UTC | 4.3mb | 101 km ENE of Lakatoro, Vanuatu -15.775°, 168.301° | 251.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 101 km ENE of Lakatoro, Vanuatu at 16:46 UTC on June 20, 2021. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 16:38:30 UTC | 2.3ml | 6 km SSE of P?hala, Hawaii 19.155°, -155.447° | 37.2 km | - | - | - | Auto | USGS → |
On June 20, 2021 at 16:38 UTC, a magnitude 2.3 earthquake struck 6 km SSE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 1 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-06-20 2021-06-20 16:24:19 UTC | 4.6mb | Kermadec Islands region -28.816°, -176.714° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake in the Kermadec Islands region with origin time 16:24 UTC on June 20, 2021. It arrived roughly 1 hours after a larger magnitude 4.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.6 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 June 20, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.