M 7.7 Earthquake and Tsunami (1.6 m) in Philippines from 02 Dec 2023 14:37 UTC to 14:37

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 7.7M
Depth: 45 Km
Event Date: 02 Dec 2023 14:37 UTC
02 Dec 2023 22:37 Local
Exposed Population: 790 thousand (in MMI>=VII)
Source: NTWC at00s51n9y
Inserted at: 02 Dec 2023 14:47 UTC
INFORM Coping capacity of the alert score:
4.2 (Philippines)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 Tsunami GDACS score
NTWC 1.5 1.2 1.5
at00s51n9y Scaled population (vector) 4.7 Max wave scenario 0.67m  
  C1 rapid impact 0.43 Max wave realtime 1.55m  
  C2 rapid impact 0.27      
  Country Vulnerability 0      
  INFORM_normalised 0.89      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1539231 1.5 02 Dec 2023 14:37 7.7M, 44.5km N/A 800 thousand (in 100km) 1.3m (at 00:37) 00:09 PTWC
1539232 1.5 02 Dec 2023 14:37 7.7M, 45km 7.02 790 thousand (in 100km) 1.6m (at 01:07) 00:10 NTWC
1539234 1.5 02 Dec 2023 14:37 7.6M, 32.8km 7.2 880 thousand (in MMI>=VII) 0.7m (at 01:15) 00:16 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  1.6m in Santo Nino, Philippines. This height is estimated for 2-Dec-2023 15:44:11.

Alert Date (UTC) Name Country Wave height (m)
2-Dec-2023 15:44:11 Santo Nino Philippines  1.6
2-Dec-2023 15:13:49 Antipolo Philippines  0.7
2-Dec-2023 15:13:49 Marihatag Philippines  0.7
2-Dec-2023 15:28:25 La Paz Philippines  0.5
2-Dec-2023 15:32:78 Lingig Philippines  0.5
2-Dec-2023 15:13:49 Tandag Philippines  0.5
2-Dec-2023 14:47:92 Otiela Philippines  0.4
2-Dec-2023 15:45:88 Ngalkol Palau  0.2
2-Dec-2023 16:23:39 Konlei Palau  0.2
2-Dec-2023 17:23:36 Sibahay Philippines  0.2
2-Dec-2023 15:12:55 Central Philippines  0.2
2-Dec-2023 15:33:38 San Julian Philippines  0.2
2-Dec-2023 15:33:38 San Francisco Philippines  0.2
2-Dec-2023 17:30:94 Tuburan Philippines  0.2
2-Dec-2023 15:10:56 Kinablangan Philippines  0.2
2-Dec-2023 15:50:53 Almongui Palau  0.2
2-Dec-2023 17:02:95 Manurigao Philippines  0.2
2-Dec-2023 15:44:11 Attalabul Palau  0.2
2-Dec-2023 17:48:84 Tobelo Indonesia  0.2
2-Dec-2023 17:27:24 Madrelino Philippines  0.1
2-Dec-2023 17:22:56 Maundori Indonesia  0.1
2-Dec-2023 17:47:31 Baculin B Philippines  0.1
2-Dec-2023 15:14:13 Cagosoan Pt Philippines  0.1
2-Dec-2023 18:32:43 Manikling Philippines  0.1
2-Dec-2023 18:32:43 Wason Philippines  0.1
2-Dec-2023 14:51:72 Caridad Philippines  0.1
2-Dec-2023 15:37:47 Zaragosa Philippines  0.1
2-Dec-2023 17:40:44 Homonhon Philippines  0.1
2-Dec-2023 16:40:96 Santa Cruz Philippines  0.1
2-Dec-2023 16:40:96 Kaputian Philippines  0.1
2-Dec-2023 16:39:64 Hiju Philippines  0.1
2-Dec-2023 16:39:64 Maco Philippines  0.1
2-Dec-2023 15:42:62 Angaur Palau  0.1
2-Dec-2023 17:13:39 Calolbon Philippines  0.1
2-Dec-2023 15:18:94 Tagabaquid Philippines  0.1
2-Dec-2023 15:07:85 Batong Philippines  0.1
2-Dec-2023 17:30:94 San Vicente Philippines  0.1
2-Dec-2023 17:27:24 Dampoelis Indonesia  0.1
2-Dec-2023 16:50:15 Magnesia Philippines  0.1
2-Dec-2023 16:05:18 Malakal Palau Islands  0.1
2-Dec-2023 17:08:36 Lavezares Philippines  0.1
2-Dec-2023 17:09:54 Mamwor Indonesia  0.1
2-Dec-2023 17:23:92 Napido Indonesia  0.1
2-Dec-2023 18:33:11 Baon Philippines  0.1
2-Dec-2023 16:07:82 Ibran Philippines  0.1
2-Dec-2023 17:08:53 Giporlos Philippines  0.1
2-Dec-2023 17:08:53 Paya Philippines  0.1
2-Dec-2023 17:08:53 Gigoso Philippines  0.1
2-Dec-2023 15:59:72 Dabadoru Palau  0.1
2-Dec-2023 17:22:12 Meti Philippines  0.1
2-Dec-2023 15:37:48 Jovellar Philippines  0.1
2-Dec-2023 17:37:41 Dowongigila Indonesia  0.1
2-Dec-2023 15:56:42 Karaeru Palau  0.1
2-Dec-2023 17:22:12 Galakasan Palau  0.1
2-Dec-2023 17:16:91 Lawa-an Philippines  0.1
2-Dec-2023 17:23:36 Sawendi Indonesia  0.1
2-Dec-2023 18:29:09 Sjare Indonesia  0.1
2-Dec-2023 18:40:26 Wandebori Indonesia  0.1
2-Dec-2023 15:06:42 Hernani Philippines  0.1
2-Dec-2023 15:07:13 Marmag Philippines  0.1
2-Dec-2023 17:39:61 Sapao Philippines  0.1
2-Dec-2023 18:07:83 Linao Philippines  0.1
2-Dec-2023 17:52:08 Davao Philippines  0.1
2-Dec-2023 17:52:08 Davao_PH Philippines  0.1
2-Dec-2023 17:52:26 Tagbitanag Philippines  0.1
2-Dec-2023 17:50:06 Limao Philippines  0.1
2-Dec-2023 17:50:06 Samal Philippines  0.1
2-Dec-2023 16:40:34 Pandasan Philippines  0.1
2-Dec-2023 16:58:78 Misio Indonesia  0.1
2-Dec-2023 18:38:48 Wayabula Indonesia  0.1
2-Dec-2023 15:53:32 Doitia Indonesia  0.1
2-Dec-2023 16:57:96 Apis Philippines  0.1
2-Dec-2023 15:55:44 Melekeok Palau  0.1
2-Dec-2023 15:55:44 Ulubosan Palau  0.1
2-Dec-2023 16:41:86 Goikul Palau  0.1
2-Dec-2023 18:58:24 Gamgola Indonesia  0.1
2-Dec-2023 18:58:24 Dojinga Indonesia  0.1
2-Dec-2023 17:07:53 Nuni Indonesia  0.1
2-Dec-2023 17:03:54 Kutabunan Indonesia  0.1
2-Dec-2023 17:28:92 Namber Indonesia  0.1
2-Dec-2023 18:56:47 Mandori Indonesia  0.1
2-Dec-2023 18:56:47 Dafi Indonesia  0.1
2-Dec-2023 17:34:76 Sawendidor Indonesia  0.1
2-Dec-2023 17:34:76 Sawek Indonesia  0.1
2-Dec-2023 18:30:28 Bolonan Indonesia  0.1
2-Dec-2023 15:04:87 Asgad Philippines  0.1
2-Dec-2023 15:10:61 Matarinao Philippines  0.1
2-Dec-2023 15:14:07 Mati Philippines  0.1
2-Dec-2023 16:40:96 Cambalion Philippines  0.1
2-Dec-2023 17:54:25 Pequeno Philippines  0.1
2-Dec-2023 18:12:83 Rizal Philippines  0.1
2-Dec-2023 18:16:44 Maquinalo Philippines  0.1
2-Dec-2023 16:57:73 Tjiu Indonesia  0.1
2-Dec-2023 17:22:56 Catarman Philippines  0.1
2-Dec-2023 17:22:56 Capayan Philippines  0.1
2-Dec-2023 15:53:45 Airai Palau  0.1
2-Dec-2023 18:16:98 Parang Philippines  0.1
2-Dec-2023 18:16:98 Nituan Philippines  0.1
2-Dec-2023 18:00:94 Manokwari Indonesia  0.1
2-Dec-2023 18:00:94 Insjoerifoeri Indonesia  0.1
2-Dec-2023 18:43:36 Wombdisaoe Indonesia  0.1

See full locations list (RSS)


Initial conditions

Title: ""M 7.7, 19 km ENE of Gamut, Philippines""

Fault parameters

  • Latitude: 8.6
  • Longitude: 126.4
  • Length: 112 km
  • Width: 31 km
  • Magnitude: 7.7 M

Okada parameters:

  • Slip: 2.9 m
  • Strike: 163 (geogr angle: north=0, south=180)
  • Dip: 57 degree
  • Rake: 90 degree
  • Depth: 45 km

Calculation parameters

  • Calculation space (lon/lat): 115.9, -1.9, 136.9, 19.1
  • Instead of Step -> use Cell size:1.75 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.