M 7.5 in Tonga Islands Region from 11 Nov 2022 10:48 UTC to 10:48

Hazard models

Rapid Impact
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: 7.5M
Depth: 33 Km
Event Date: 11 Nov 2022 10:48 UTC
10 Nov 2022 23:48 Local
Exposed Population: 20 thousand in MMI IV
Source: NTWC at00rl6jdd
Inserted at: 11 Nov 2022 11:05 UTC
INFORM Coping capacity of the alert score:
1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 Tsunami GDACS score
NTWC 0 0.1 0.2
at00rl6jdd Scaled population (vector) 0 Max wave scenario 0.15m  
  C1 rapid impact 0 Max wave realtime 0.15m  
  C2 rapid impact 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1472551 0.2 11 Nov 2022 10:48 7.5M, 46km N/A 20 thousand (in 100km) 0.2m (at 01:10) 00:11 GEOFON
1472552 0.3 11 Nov 2022 10:48 7.5M, 33km 4.53 20 thousand (in 100km) 0.4m (at 00:22) 00:12 PTWC
1472553 0.2 11 Nov 2022 10:48 7.5M, 33km 4.5 20 thousand (in 100km) 0.1m (at 00:00) 00:17 NTWC
1472555 0.4 11 Nov 2022 10:48 7.1M, 10km 4.19 N/A (in MMI>=VII) 0.4m (at 00:22) 00:20 NEIC
1472561 0.1 11 Nov 2022 10:48 7.3M, 24.797km 4.22 N/A (in MMI>=VII) 0.2m (at 00:22) 00:38 NEIC
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.

Tsunami affected locations

The maximum Wave height is  0.2m in Alofi, Niue. This height is estimated for 11-Nov-2022 11:09:62.

Alert Date (UTC) Name Country Wave height (m)
11-Nov-2022 11:09:62 Alofi Niue  0.2
11-Nov-2022 11:09:62 Niue Niue  0.2
11-Nov-2022 11:03:24 Avatele Niue  0.2
11-Nov-2022 11:03:24 Hakupu Niue  0.2
11-Nov-2022 12:01:36 Ohonua Tonga  0.2
11-Nov-2022 11:12:69 Neiafu Tonga  0.2
11-Nov-2022 11:06:63 Liku Niue  0.1
11-Nov-2022 12:19:85 Samatau Samoa  0.1
11-Nov-2022 13:24:26 Pago Pago American Samoa  0.1
11-Nov-2022 13:24:26 Siufaga American Samoa  0.1
11-Nov-2022 13:24:26 Fagatogo American Samoa  0.1
11-Nov-2022 13:24:26 Atuu American Samoa  0.1
11-Nov-2022 13:24:26 Leloaloa American Samoa  0.1
11-Nov-2022 13:24:26 Aua American Samoa  0.1
11-Nov-2022 13:24:26 Afono American Samoa  0.1
11-Nov-2022 13:24:26 Auto American Samoa  0.1
11-Nov-2022 13:24:26 Fagaitua American Samoa  0.1
11-Nov-2022 13:24:26 Pago Pago Samoa  0.1
11-Nov-2022 13:24:26 Pago_Pago_AS USA  0.1
11-Nov-2022 11:06:73 Lakepa Niue  0.1
11-Nov-2022 11:24:65 Mua Tonga  0.1
11-Nov-2022 11:24:65 Fatumu Tonga  0.1
11-Nov-2022 12:03:41 Hihifo Tonga  0.1
11-Nov-2022 12:41:43 Faleaseela Samoa  0.1
11-Nov-2022 12:30:64 Poloa American Samoa  0.1
11-Nov-2022 12:30:64 Amanave American Samoa  0.1
11-Nov-2022 12:30:64 Seetaga American Samoa  0.1
11-Nov-2022 12:30:64 Amaluia American Samoa  0.1
11-Nov-2022 12:30:64 Leone American Samoa  0.1
11-Nov-2022 13:48:15 Aasu American Samoa  0.1
11-Nov-2022 12:25:56 Ongea Fiji  0.1
11-Nov-2022 12:25:15 Mua Wallis and Futuna  0.1
11-Nov-2022 11:26:57 Fuaamotu Tonga  0.1
11-Nov-2022 11:44:63 Alaufau American Samoa  0.1
11-Nov-2022 11:44:63 Lalomoana American Samoa  0.1
11-Nov-2022 11:44:63 Olosega American Samoa  0.1
11-Nov-2022 12:25:15 Alo Wallis and Futuna  0.1
11-Nov-2022 11:03:24 Mutalau Niue  0.1
11-Nov-2022 11:22:19 Niutoua Tonga  0.1
11-Nov-2022 11:59:75 Kolonga Tonga  0.1
11-Nov-2022 12:08:29 Falehau Tonga  0.1
11-Nov-2022 12:31:97 Fagasa American Samoa  0.1
11-Nov-2022 12:31:97 Nuuuli American Samoa  0.1
11-Nov-2022 12:31:97 Utulei American Samoa  0.1
11-Nov-2022 12:31:97 Matuu American Samoa  0.1
11-Nov-2022 12:31:97 Fagaalu American Samoa  0.1
11-Nov-2022 12:31:97 Lauliifou American Samoa  0.1
11-Nov-2022 11:43:26 Masefau American Samoa  0.1
11-Nov-2022 11:43:26 Alofau American Samoa  0.1
11-Nov-2022 11:43:26 Aoa American Samoa  0.1
11-Nov-2022 11:43:26 Amouli American Samoa  0.1
11-Nov-2022 11:43:26 Onenoa American Samoa  0.1
11-Nov-2022 11:43:26 Alao American Samoa  0.1
11-Nov-2022 11:42:66 Tula American Samoa  0.1
11-Nov-2022 11:43:26 Aunuu American Samoa  0.1
11-Nov-2022 11:51:51 Esia Fiji  0.1
11-Nov-2022 12:22:57 Fagamalo American Samoa  0.1
11-Nov-2022 11:45:75 Tau American Samoa  0.1
11-Nov-2022 11:45:75 Faleasau American Samoa  0.1
11-Nov-2022 12:25:56 Leava Wallis and Futuna  0.1
11-Nov-2022 12:25:56 Leava (Futuna Island- Wallis and Futuna) France  0.1
11-Nov-2022 11:30:45 Pea Tonga  0.1
11-Nov-2022 11:57:99 Lotofago Samoa  0.1
11-Nov-2022 12:37:82 Gautavai Samoa  0.1
11-Nov-2022 11:57:75 Leusoalii American Samoa  0.1
11-Nov-2022 12:17:52 Amaile Samoa  0.1
11-Nov-2022 12:10:18 Salelologa Samoa  0.1
11-Nov-2022 12:10:18 Tuasivi Samoa  0.1
11-Nov-2022 13:30:66 Monothaki Fiji  0.1
11-Nov-2022 13:13:26 Tuvutha Fiji  0.1
11-Nov-2022 12:58:57 Thikombia Fiji  0.1
11-Nov-2022 12:42:77 Mua Wallis and Futuna  0.1
11-Nov-2022 11:58:53 Siumu Samoa  0.1

See full locations list (RSS)


Initial conditions

Title: ""Tonga region""

Fault parameters

  • Latitude: -19.3
  • Longitude: -172
  • Length: 89 km
  • Width: 24 km
  • Magnitude: 7.5 M

Okada parameters:

  • Slip: 2.3 m
  • Strike: 193 (geogr angle: north=0, south=180)
  • Dip: 19 degree
  • Rake: 90 degree
  • Depth: 33 km

Calculation parameters

  • Calculation space (lon/lat): -179.5, -26.8, -164.5, -11.8
  • Instead of Step -> use Cell size:1.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

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