Moderate mag. 3.8 earthquake - North Pacific Ocean, 66 mi south of Kīhei, Maui County, Hawaii, USA, on Tuesday, 23 Feb 2021 4:41 am (GMT -10) -
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Moderate magnitude 3.8 earthquake at 6 km depth
23 Feb 14:45 UTC: First to report: USGS after 4 minutes.
23 Feb 14:47: Magnitude recalculated from 3.3 to 3.7.
23 Feb 15:06: Magnitude recalculated from 3.7 to 3.8.
23 Feb 14:47: Magnitude recalculated from 3.3 to 3.7.
23 Feb 15:06: Magnitude recalculated from 3.7 to 3.8.
Update Tue, 23 Feb 2021, 14:51
Small 3.7 quake hits near Kalaoa, Hawaii County, Hawaii, USA3.7 quake 23 Feb 4:41 am (GMT -10)
The United States Geological Survey reported a magnitude 3.7 quake in the United States near Kalaoa, Hawaii County, Hawaii, only 10 minutes ago. The earthquake hit early morning on Tuesday 23 February 2021 at 4:41 am local time at a very shallow depth of 4 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.6 earthquake.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Kalaoa (pop. 9,600, 49 miles away), Kalaoa (pop. 9,600, 49 miles away), and Holualoa (pop. 8,500, 53 miles away), the quake was probably not felt.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.6 earthquake.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Kalaoa (pop. 9,600, 49 miles away), Kalaoa (pop. 9,600, 49 miles away), and Holualoa (pop. 8,500, 53 miles away), the quake was probably not felt.
If you were or still are in this area during the quake help others with your feedback and file a quick report here.
Earthquake data:
I felt this quake
I didn't feel it
Local time at epicenter: Tuesday, 23 Feb 2021 4:41 am (GMT -10)
Magnitude: 3.8
Depth: 6.4 km
Epicenter latitude / longitude: 19.8415°N / 156.72417°W
(North Pacific Ocean, Hawaii, United States)Nearest volcano: Hualalai (91 km / 57 mi)
Nearby towns and cities:
79 km (49 mi) W of Kalaoa (Hawaii County) (pop: 9,640) --> See nearby quakes!
85 km (53 mi) WNW of Holualoa (Hawaii County) (pop: 8,540) --> See nearby quakes!
107 km (66 mi) SSW of Kīhei (pop: 20,900) --> See nearby quakes!
119 km (74 mi) S of Wailuku (pop: 15,300) --> See nearby quakes!
119 km (74 mi) SSW of Kahului (pop: 26,300) --> See nearby quakes!
171 km (107 mi) W of Hilo (pop: 43,300) --> See nearby quakes!
191 km (119 mi) SSE of East Honolulu (pop: 49,900) --> See nearby quakes!
201 km (125 mi) SE of Honolulu (pop: 371,700) --> See nearby quakes!
203 km (126 mi) SSE of Kailua (pop: 38,600) --> See nearby quakes!
217 km (135 mi) SE of Pearl City (pop: 47,700) --> See nearby quakes!
114 km (71 mi) SSW of Maui Island (pop: 154,800) --> See nearby quakes!
116 km (72 mi) WNW of Hawaii Island (pop: 185,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds
23.9°C (75 F), humidity: 75%, wind: 6 m/s (12 kts) from ENE
Primary data source: USGS (United States Geological Survey)Few Clouds
23.9°C (75 F), humidity: 75%, wind: 6 m/s (12 kts) from ENEEstimated released energy: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) More info
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
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Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Magnitude | Depth | Location | Source |
| M 3.8 | 6.4 km | 78 Km W of Kalaoa, Hawaii, USA | USGS |
| M 3.7 | 10 km | HAWAII REGION, HAWAII, USA | EMSC |
User reports for this quake (4)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
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Flag as inappropriate.
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Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Kona / Weak shaking (MMI III) / 2-5 s : I am from Baltimore Maryland and I am still on Eastern standard timing. I was sitting on the third floor and felt a shuttering and heard things vibrating.
Kona Acres, Holoholo St / Light shaking (MMI IV) / single lateral shake : It woke me up and was a quick rattle.
Kailua-Kona / Very weak shaking (MMI II) / 1-2 s
Holualoa / Moderate shaking (MMI V) : House shook for a second. Window rattled
Earlier earthquakes in the same area
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