M 6.21 in United States on 10 Oct 2021 21:48 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.2M
Depth: 35.06 Km
Lat/Lon: 18.8203333333333 , -155.527166666667
Event Date: 10 Oct 2021 21:48 UTC
10 Oct 2021 11:48 Local
Exposed Population: About 3000 people in MMI
20 thousand in 100km
Source: HVO hv72748782
Inserted at: 18 Oct 2021 15:39 UTC
INFORM Coping capacity of the alert score: 2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
HVO 0 0 0
hv72748782 Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.65      
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1401457 0 10 Oct 2021 21:48 6.1M, 17.1km N/A 20 thousand (in 100km) 7d 17:37 PTWC
1401462 0 10 Oct 2021 21:48 5.7M, 34.66km N/A 150 thousand (in 100km) 7d 17:36 NEIC
1401464 0 10 Oct 2021 21:48 6.21M, 35.06km 6.82 N/A (in MMI>=VII) 0m (at 00:00) 7d 17:50 HVO
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in United States ,of Hawaii. The alertlevel for this event is GREEN

Intensity Population
3300 people
30000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1401464 18.82/-155.527 6.2 35.1 7.016 10 Oct 2021 22:10 00:22 (new episode)
2 0 1401464 18.82/-155.527 6.2 35.1 6.746 10 Oct 2021 23:09 01:21 (upd of #1)
3 0 1401464 18.82/-155.527 6.2 35.1 6.824 10 Oct 2021 23:14 01:25 (upd of #2)
4 0 1401464 18.82/-155.527 6.2 35.1 6.735 10 Oct 2021 23:54 02:05 (upd of #3)
5 0 1401464 18.82/-155.527 6.2 35.1 6.826 11 Oct 2021 00:38 02:50 (upd of #4)
6 0 1401464 18.82/-155.527 6.2 35.1 6.643 11 Oct 2021 15:07 17:19 (upd of #5)
7 0 1401464 18.82/-155.527 6.2 35.1 6.739 11 Oct 2021 15:20 17:32 (upd of #6)
8 0 1401464 18.82/-155.527 6.2 35.1 6.643 11 Oct 2021 21:54 1d 00:05 (upd of #7)
9 0 1401464 18.82/-155.527 6.2 35.1 6.818 18 Oct 2021 15:35 7d 17:46 (upd of #8)

Affected Provinces

Intensity Region Province Country Population
Hawaii United States <1000 people
Hawaii United States 6300 people
Hawaii United States 160000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Kaalualu Hawaii United States Village - 20 km
Waiahukini Hawaii United States Village - 24 km
Honuapo Hawaii United States Village - 31 km
Kuipo Hawaii United States Village - 39 km
Pahala Hawaii United States Village 1400 people 42 km
Papa Hawaii United States Village - 57 km
Milolii Hawaii United States Village - 57 km
Keokea Hawaii United States Village - 76 km
Honaunau Hawaii United States Village - 78 km
Napoopao Hawaii United States Village - 84 km
Glenwood Hawaii United States Village - 84 km
Mountain View Hawaii United States Village 2800 people 92 km
Ainaloa Hawaii United States Village 1900 people 96 km
Papaikou Hawaii United States Village 1400 people 116 km
Pepeekeo Hawaii United States Village 1700 people 121 km
Volcano House Hawaii United States Village - 73 km
Kealia Hawaii United States Village - 74 km
Kupaahu Hawaii United States Village - 79 km
Kalapana Hawaii United States Village - 83 km
Captain Cook Hawaii United States Village 3200 people 86 km
Keauhou Hawaii United States Village - 94 km
Opihikao Hawaii United States Village - 96 km
Leilani Estates Hawaii United States Village 1000 people 96 km
Holualoa Hawaii United States Village 6100 people 100 km
Pohoiki Hawaii United States Village - 101 km
Keaau Hawaii United States Village 2000 people 102 km
Hawaiian Beaches Hawaii United States Village 3700 people 103 km
Hawaiian Paradise Park Hawaii United States Village 7100 people 104 km
Phoakuloa Hawaii United States Village - 105 km
Makuu Hawaii United States Village - 105 km
Koae Hawaii United States Village - 106 km
Pua Akala Hawaii United States Village - 109 km
Hilo Hawaii United States City 41000 people 110 km
Kalaoa Hawaii United States Village 6800 people 112 km
Puuanahulu Hawaii United States Village - 115 km
Waikii Hawaii United States Village - 116 km
Mahaiula Hawaii United States Village - 119 km
Kiholo Hawaii United States Village - 122 km
Keanakalu Hawaii United States Village - 123 km
Umikoa Hawaii United States Village - 130 km
Weloka Hawaii United States Village - 131 km
Mana Hawaii United States Village - 131 km
Papaaloa Hawaii United States Village - 132 km
Waimea Hawaii United States Village 7000 people 133 km
Ookala Hawaii United States Village - 133 km
Waiaka Hawaii United States Village - 135 km
Kawaihae Hawaii United States Village - 139 km
Honokaa Hawaii United States Village 2200 people 140 km
Waipio Hawaii United States Village - 143 km
Kahua Hawaii United States Village - 148 km
Mahukona Hawaii United States Village - 156 km
Makapala Hawaii United States Village - 157 km
Niulii Hawaii United States Village - 157 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Kaalaiki Airstrip 599 0 34 km
Pahala Airstrip 364 0 44 km
Upper Paauau 792 0 45 km
Mountain View Airstrip 457 0 92 km
Mauna Kea-Honolii 427 0 112 km
Pepeekeo Airstrip 206 0 121 km
Peleau 332 0 126 km
Rainshed 1219 0 73 km
Bradshaw AAF BSF 1886 Civ. Paved No 3600 104 km
Hilo Hospital 148 0 106 km
Hilo International ITO 12 Civ. Paved Yes 9800 112 km
Puu Waa Waa Ranch 686 0 112 km
Keahole KOA 13 Civ. Paved Yes 11000 115 km
Lucy Henriques Medical Center 853 0 116 km
Kaupulehu 13 0 122 km
Waikoloa 33 0 126 km
Kamuela MUE 814 Civ. Paved No 5100 132 km
Upper Paauilo Airstrip 463 0 135 km
Honokaa Airstrip 439 0 140 km
Upolu UPP 29 Civ. Paved No 3800 164 km

Ports

Intensity Name LOCODE Country Distance
Honuapo Wake Island 29 km
Milolii Wake Island 57 km
Kauhako Bay Wake Island 73 km
Napoopoo Wake Island 85 km
Kailua Wake Island 103 km
Hilo USITO Wake Island 112 km
Kiholo Wake Island 123 km
Kawaihae USKWH Wake Island 138 km
Honokaa Wake Island 142 km
Mahukona Wake Island 156 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.