Moderate mag. 4.1 earthquake - 28 mi west of Volcano Village, Hawaii, USA, on Friday, 4 Dec 2020 7:44 am (GMT -10) -
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Moderate magnitude 4.1 earthquake at 5 km depth
4 Dec 17:47 UTC: First to report: USGS after 3 minutes.
4 Dec 17:50: Magnitude recalculated from 1.8 to 3.8.
4 Dec 17:56: Magnitude recalculated from 4.0 to 4.1. Hypocenter depth recalculated from 1.9 to 4.7 km (from 1.2 to 2.9 mi).
4 Dec 17:50: Magnitude recalculated from 1.8 to 3.8.
4 Dec 17:56: Magnitude recalculated from 4.0 to 4.1. Hypocenter depth recalculated from 1.9 to 4.7 km (from 1.2 to 2.9 mi).
Update Fri, 4 Dec 2020, 17:51
Light 4.0 quake hits near Honaunau-Napoopoo, United States4.0 quake 28 mi west of Volcano Village, Hawaii, USA, 4 Dec 7.44 am (GMT -10)
An earthquake of magnitude 4.0 occurred in the morning on Friday 4 December 2020 at 7.44 am local time near Honaunau-Napoopoo, Hawaii County, Hawaii, USA, as reported by the United States Geological Survey (USGS).
According to preliminary data, the quake was located at a very shallow depth of 1.2 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Honaunau-Napoopoo (pop. 2,600) located 14 miles from the epicenter, Captain Cook (pop. 3,400) 17 miles away, Kealakekua (pop. 2,000) 17 miles away, and Hōlualoa (pop. 8,500) 20 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Kailua-Kona (pop. 12,000) located 24 miles from the epicenter, Kalaoa (pop. 9,600) 26 miles away, Waimea (pop. 9,200) 35 miles away, and Hilo (pop. 43,300) 40 miles away.
According to preliminary data, the quake was located at a very shallow depth of 1.2 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Honaunau-Napoopoo (pop. 2,600) located 14 miles from the epicenter, Captain Cook (pop. 3,400) 17 miles away, Kealakekua (pop. 2,000) 17 miles away, and Hōlualoa (pop. 8,500) 20 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Kailua-Kona (pop. 12,000) located 24 miles from the epicenter, Kalaoa (pop. 9,600) 26 miles away, Waimea (pop. 9,200) 35 miles away, and Hilo (pop. 43,300) 40 miles away.
Earthquake data:
Date & time: 4 Dec 2020 17:44:24 UTC -
Local time at epicenter: Friday, 4 Dec 2020 7:44 am (GMT -10)
Magnitude: 4.1
Depth: 4.7 km
Epicenter latitude / longitude: 19.51267°N / 155.66267°W
(Hawaii, Hawaii, United States)Nearest volcano: Maunaloa (7 km / 4 mi)
Nearby towns and cities:
22 km (14 mi) ENE of Honaunau-Napoopoo (pop: 2,570) --> See nearby quakes!
32 km (20 mi) ESE of Holualoa (Hawaii County) (pop: 8,540) --> See nearby quakes!
39 km (25 mi) NNW of Pāhala (pop: 1,360) --> See nearby quakes!
41 km (26 mi) SE of Kalaoa (Hawaii County) (pop: 9,640) --> See nearby quakes!
46 km (28 mi) W of Volcano Village (pop: 2,580) --> See nearby quakes!
49 km (31 mi) SSE of Waikoloa (pop: 4,810) --> See nearby quakes!
57 km (35 mi) S of Waimea (Hawaii County) (pop: 9,210) --> See nearby quakes!
65 km (40 mi) WSW of Hilo (pop: 43,300) --> See nearby quakes!
291 km (181 mi) SE of East Honolulu (pop: 49,900) --> See nearby quakes!
304 km (189 mi) SE of Honolulu (pop: 371,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
21.9°C (71 F), humidity: 88%, wind: 3 m/s (5 kts) from W
Primary data source: USGS (United States Geological Survey)Broken Clouds
21.9°C (71 F), humidity: 88%, wind: 3 m/s (5 kts) from WEstimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
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 |
| 4.1 | 4.7 km | 22 Km ENE of Honaunau-Napoopoo, Hawaii, USA | USGS |
User reports for this quake (13)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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56.5 km NNW of epicenter [Map] / not felt / very short : Didn’t notice any shaking but heard a popping sound and immediatteky knew it was an earthquake. | 2 users found this interesting.
41.7 km SW of epicenter [Map] / Light shaking (MMI IV) / vibration and rolling / 2-5 s : I was sitting down and felt it, my husband who was standing also noticed it | 2 users found this interesting.
58.4 km N of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
190.2 km NW of epicenter [Map] / not felt
58.4 km N of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
41.6 km NW of epicenter [Map] / Weak shaking (MMI III)
Honalo, Hawaii Island (29 km W of epicenter) [Map] / Very weak shaking (MMI II) / very short : Just a short bump in the house.
Kealakekua (27.4 km W of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating (reported through our app)
Painted Church / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Kona paradise subdivision / Light shaking (MMI IV) / single lateral shake / very short : Sitting on bed reading and shook bed
Laloa, HI / Light shaking (MMI IV)
Ocean View / Weak shaking (MMI III) / very short : Hove...One big jolt but no shaking
Captain Cook / Weak shaking (MMI III) / 15-20 s
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