Moderate mag. 4.1 earthquake - 26 mi south of Hilo, Hawaii County, USA, on Monday, 1 Feb 2021 2:13 pm (GMT -10) -

Moderate mag. 4.1 earthquake - 26 mi south of Hilo, Hawaii County, USA, on Monday, 1 Feb 2021 2:13 pm (GMT -10)

Moderate magnitude 4.1 earthquake at 6 km depth

2 Feb 00:17 UTC: First to report: USGS after 4 minutes.
2 Feb 00:20: Magnitude recalculated from 3.8 to 3.9.
2 Feb 00:26: Magnitude recalculated from 3.9 to 4.1. Hypocenter depth recalculated from 6.2 to 6.8 km (from 3.9 to 4.2 mi).
2 Feb 00:32: Hypocenter depth recalculated from 6.8 to 6.3 km (from 4.2 to 3.9 mi).
Update Tue, 2 Feb 2021, 00:21
Magnitude 3.9 earthquake strikes near Hilo, Hawaii County, Hawaii, United States
3.9 quake 1 Feb 2:13 pm (GMT -10)
3.9 quake 1 Feb 2:13 pm (GMT -10)
An earthquake of magnitude 3.9 occurred only 8 minutes ago 26 miles south of Hilo, Hawaii, United States, the United States Geological Survey (USGS) reported.
The quake hit at a very shallow depth of 3.9 miles beneath the epicenter near Hilo, Hawaii County, Hawaii, USA, early afternoon on Monday 1 February 2021 at 2:13 pm local time. 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.9 as well.
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 Fern Forest (pop. 930) located 9 miles from the epicenter, Volcano Village (pop. 2,600) 12 miles away, Ainaloa (pop. 3,000) 13 miles away, Mountain View (pop. 3,900) 14 miles away, and Hawaiian Beaches (pop. 4,300) 17 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Hawaiian Paradise Park (pop. 11,400) located 18 miles from the epicenter, and Hilo (pop. 43,300) 26 miles away.
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Earthquake data:

Date & time: 2 Feb 2021 00:13:09 UTC -
Local time at epicenter: Monday, 1 Feb 2021 2:13 pm (GMT -10)
Magnitude: 4.1
Depth: 6.3 km
Epicenter latitude / longitude: 19.35233°N / 155.07967°W (Hawaii County, Hawaii, United States)
Nearest volcano: Kilauea (23 km / 14 mi)
Nearby towns and cities:
14 km (9 mi) SSE of Fern Forest (pop: 931) --> See nearby quakes!
19 km (12 mi) ESE of Volcano Village (pop: 2,580) --> See nearby quakes!
23 km (14 mi) S of Mountain View (pop: 3,920) --> See nearby quakes!
25 km (15 mi) SW of Nanawale Estates (pop: 1,430) --> See nearby quakes!
29 km (18 mi) SSW of Hawaiian Paradise Park (Hawaii County) (pop: 11,400) --> See nearby quakes!
42 km (26 mi) S of Hilo (pop: 43,300) --> See nearby quakes!
45 km (28 mi) ENE of Pāhala (pop: 1,360) --> See nearby quakes!
54 km (33 mi) S of Pepeekeo (pop: 1,790) --> See nearby quakes!
349 km (217 mi) SE of East Honolulu (pop: 49,900) --> See nearby quakes!
362 km (225 mi) SE of Honolulu (pop: 371,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds 25.6°C (78 F), humidity: 50%, wind: 5 m/s (9 kts) from E
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
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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.
4.16.3 km13 Km SSE of Fern Forest, Hawaii, USAUSGS

User reports for this quake (23)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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54.5 km N of epicenter [Map] / Moderate shaking (MMI V) : Felt like a double shake - first one strong bottles glasses displaced then a repeat less strong whole bed shook twice cat ran outside | 2 users found this interesting.
42 km N of epicenter [Map] / Light shaking (MMI IV) : It went on for a couple seconds and seemed to have some waves after it. I would certainly have said it was more than a 3.9. I'm in Hilo. I'm not an expert though, I'm just comparing it to other ones I felt here | One user found this interesting. (reported through our app)
38.8 km N of epicenter [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Felt a jolt and briefly saw the desk rattle for less than a second. | One user found this interesting.
Kaimu / Light shaking (MMI IV) / 2-5 s : I was in the ground floor and the building shook for a few seconds. | One user found this interesting.
97.8 km WNW of epicenter [Map] / not felt (reported through our app)
15.9 km NNW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Papaikou (50.5 km N of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s (reported through our app)
38.6 km N of epicenter [Map] / Light shaking (MMI IV) : Jolt shook table
Paauilo mauka (82.5 km NNW of epicenter) [Map] / Moderate shaking (MMI V) / 1-2 s
53.9 km N of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
22.6 km N of epicenter [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Stationary car moving from side to side. Hawaiian Acres 8&B (reported through our app)
Paukaa (46 km N of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s (reported through our app)
Hilo / Weak shaking (MMI III) : My open loose sliding door slamclosed
Hilo / Light shaking (MMI IV) / single lateral shake / 1-2 s
Kaloli Point, Kea’au Hawaii / Light shaking (MMI IV) : Our Kilauea Volcano is erupting. So our ground is moving
Laupahoehoe / Light shaking (MMI IV) / vibration and rolling / 2-5 s : Felt a roll and fairly good shake.
Hawaiian Acres (mountain View side) / not felt : Was outside landscaping, approx 14 miles from epicenter, was not aware of anything
Hilo / Weak shaking (MMI III) : My open loose sliding door slamclosed
Kaloli Point, Kea’au Hawaii / Light shaking (MMI IV) : Our Kilauea Volcano is erupting. So our ground is moving
Pepeekeo,HI / Light shaking (MMI IV)
Kaimu Makena Homestead Rd / Light shaking (MMI IV) / 2-5 s
Hawaiian Acres / Light shaking (MMI IV) : dogs got up and then it started shaking quiet a bit. Maybe 5 seconds , two back and forth shaker.
Papaikou, HI / Light shaking (MMI IV) : Windows shaking, chair shaking. Dog scared
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