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Mag. 3.3 earthquake - 27 mi south of Hilo, Hawaii County, Hawaii, USA, on Monday, Nov 20, 2023, at 09:45 am (Honolulu time) -

A light magnitude 3.3 earthquake hit near Hawaii island, USA, in the morning of Monday, Nov 20, 2023 at 9.45 am local time (Pacific/Honolulu GMT -10). The quake had a very shallow depth of 7.3 km (4.5 mi) and was not felt (or at least not reported so).

Mag. 3.3 earthquake - 27 mi south of Hilo, Hawaii County, Hawaii, USA, on Monday, Nov 20, 2023, at 09:45 am (Honolulu time) Mag. 3.3 earthquake - 27 mi south of Hilo, Hawaii County, Hawaii, USA, on Monday, Nov 20, 2023, at 09:45 am (Honolulu time)

Light magnitude 3.3 earthquake at 7 km depth

20 Nov 19:49 UTC: First to report: USGS after 4 minutes.
20 Nov 19:51: Magnitude recalculated from 3.2 to 3.1.
20 Nov 19:59: Magnitude recalculated from 3.1 to 3.3. Hypocenter depth recalculated from 6.7 to 7.3 km (from 4.2 to 4.5 mi). Epicenter location corrected by 0.8 km (0.5 mi) towards NW.

Earthquake details

Date & timeNov 20, 2023 19:45:12 UTC -
Local time at epicenterMonday, Nov 20, 2023, at 09:45 am (Pacific/Honolulu GMT -10)
StatusConfirmed
Magnitude3.3
Depth7.3 km
Epicenter latitude / longitude19.3415°N / 155.1118°W Hawaii, Hawaii, United States
Seismic antipode19.3415°S / 24.8882°E Botswana
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoKilauea (20 km / 12 mi)
Weather at epicenter at time of quakeFew Clouds 22.9°C (73 F), humidity: 58%, wind: 3 m/s (7 kts) from ENE
Estimated seismic energy released5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) | about seismic energy
Interactive map
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Nearby places

The closest larger town where the quake might have been felt is Hawaiian Paradise Park, a town with 11,000 inhabitants in the United States, in 32 km (20 mi) distance northeast of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.
The following table shows some of the places that might have been affected (or not) by the shaking.
Distance Place Max. shaking intensity(*) Region Country
14 km (9 mi)
N of epicenter
Fern Forest
(pop: 931)
III: Weak
Hawaii, Hawaii
17 km (11 mi)
NW of epicenter
Volcano Village
(pop: 2,580)
III: Weak
Hawaii, Hawaii
24 km (15 mi)
N of epicenter
Mountainview
(pop: 3,920)
II: Very weak
Hawaii, Hawaii
25 km (15 mi)
NE of epicenter
Leilani Estates
(pop: 1,560)
II: Very weak
Hawaii, Hawaii
32 km (20 mi)
NE of epicenter
Hawaiian Paradise Park
(pop: 11,400)
II: Very weak
Hawaii, Hawaii
41 km (26 mi)
W of epicenter
Pāhala
(pop: 1,360)
II: Very weak
Hawaii, Hawaii
43 km (27 mi)
N of epicenter
Hilo
(pop: 43,300)
II: Very weak
Hawaii, Hawaii
55 km (34 mi)
N of epicenter
Pepeekeo
(pop: 1,790)
II: Very weak
Hawaii, Hawaii
58 km (36 mi)
SW of epicenter
Naalehu
(pop: 866)
II: Very weak
Hawaii, Hawaii
73 km (45 mi)
N of epicenter
Laupāhoehoe
(pop: 581)
II: Very weak
Hawaii, Hawaii
75 km (47 mi)
SW of epicenter
Ocean View
(pop: 4,440)
I: Not felt
Hawaii, Hawaii
82 km (51 mi)
N of epicenter
Pa‘auilo
(pop: 595)
I: Not felt
Hawaii, Hawaii
87 km (54 mi)
W of epicenter
Captain Cook
(pop: 3,430)
I: Not felt
Hawaii, Hawaii
90 km (56 mi)
NW of epicenter
Honokaa
(pop: 2,260)
I: Not felt
Hawaii, Hawaii
93 km (58 mi)
W of epicenter
Holualoa
(pop: 8,540)
I: Not felt
Hawaii, Hawaii
96 km (60 mi)
NW of epicenter
Waimea
(pop: 9,210)
I: Not felt
Hawaii, Hawaii
97 km (60 mi)
NW of epicenter
Waikoloa
(pop: 4,810)
I: Not felt
Hawaii, Hawaii
99 km (62 mi)
NW of epicenter
Kukuihaele
(pop: 336)
I: Not felt
Hawaii, Hawaii
101 km (63 mi)
NW of epicenter
Kalaoa
(pop: 9,640)
I: Not felt
Hawaii, Hawaii
123 km (76 mi)
NW of epicenter
Kapaau
(pop: 1,730)
I: Not felt
Hawaii, Hawaii
182 km (113 mi)
NW of epicenter
Hana
(pop: 1,240)
I: Not felt
Maui County, Hawaii
199 km (124 mi)
NW of epicenter
Wailua
(pop: 2,160)
I: Not felt
Maui County, Hawaii
210 km (130 mi)
NW of epicenter
Pukalani
(pop: 7,570)
I: Not felt
Maui County, Hawaii
211 km (131 mi)
NW of epicenter
Kīhei
(pop: 20,900)
I: Not felt
Maui County, Hawaii
215 km (134 mi)
NW of epicenter
Haiku-Pauwela
(pop: 8,120)
I: Not felt
Maui County, Hawaii
223 km (139 mi)
NW of epicenter
Kahului
(pop: 26,300)
: Not felt
Maui County, Hawaii
226 km (140 mi)
NW of epicenter
Wailuku
(pop: 15,300)
: Not felt
Maui County, Hawaii
236 km (147 mi)
NW of epicenter
Lahaina
(pop: 11,700)
: Not felt
Maui County, Hawaii
360 km (224 mi)
NW of epicenter
Honolulu
(pop: 371,700)
: Not felt
Hawaii
Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

User-reports for this quake (1)

We received 1 report for this quake.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Pahoa / not felt

What is Intensity and the Mercalli Intensity Scale?


The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.
Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.
Read more about the MMI scale!

Compare Quake Data

Data for the same earthquake as reported by different agencies

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.
Mag Depth Time GMT
2023-11-20
Epicenter Agency
3.3 7.3 km
4.5 mi
19:45:12 13 Km S of Fern Forest, Hawaii USGS (United States Geological Survey)
3.3 7.3 km
4.5 mi
19:45:12 Island of Hawaii, Hawaii
0 km (0 mi) epicenter difference with USGS
EMSC (European-Mediterranean Seismological Centre)
3.3 10 km
6.2 mi
(*)
19:45:12 Hawaii
0 km (0 mi) epicenter difference with USGS
IRIS (Incorporated Research Institutions for Seismology)
Notes:
(*) A depth given as 10 km often means that the the depth of the quake could not determined with sufficient accuracy.

Seismograms

Seismic station: Pohakuloa, Hawaii, USA (POHA/IU network) | Distance from quake: 64 km / 40 mi | Show on map | Station Info
Seismic station Pohakuloa, Hawaii, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

Earthquake statistics

Average number of earthquakes

Based on data from the past 10 years and our earthquake archive back to 1900, there are about 86,000 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
  • Mag. 7 or higher: 0.02 quakes per year (or 1 quake every 50 years)
  • Mag. 6 or higher: 0.17 quakes per year (or 1 quake every 5.9 years)
  • Mag. 5 or higher: 6.2 quakes per year
  • Mag. 4 or higher: 17.2 quakes per year
  • Mag. 3 or higher: 287 quakes per year (or 23.9 quakes per month)
  • Mag. 2 or higher: 5,300 quakes per year (or 14.4 quakes per day)
  • Mag. 1 or higher: 8,000 quakes per year (or 21.9 quakes per day)
The area where this quake occurred has a very high level of seismic activity. It has had at least 2 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 60 to 65 years.

Number of quakes per year

Previous quakes in the same area of this earthquake

Map of earlier quakes in the area of this quake

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Map to embed or share

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