M 6.8 in Philippines on 28 Apr 2017 20:23 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 6.8M
Depth: 26 Km
Event Date: 28 Apr 2017 20:23 UTC
29 Apr 2017 04:23 Local
Exposed Population: About 1000 people in MMI
1750000 people within 100km
Source: NEIC us10008ls4
Inserted at: 28 Apr 2017 21:30 UTC
INFORM Coping capacity of the alert score:
4.2 (Philippines)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 2.2 1 2.2
us10008ls4 Scaled population (vector) 0 Max wave scenario 0m  
  C1 earthquake 1 Max wave realtime 0.16m  
  C2 earthquake 0      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1165746 2.6 28 Apr 2017 20:23 7.2M, 10km N/A 1.8 million (in 100km) 0.8m (at 00:04) 00:06 GEOFON
1165748 2.6 28 Apr 2017 20:23 7.2M, 10km N/A 1.8 million (in 100km) 0.8m (at 00:04) 00:09 PTWC
1165753 2.6 28 Apr 2017 20:23 7.2M, 10km N/A 1.8 million (in 100km) 0.8m (at 00:04) 00:15 NTWC    
1165756 2.2 28 Apr 2017 20:23 6.8M, 41.74km 6.71 1 thousand (in MMI>=VII) 0.1m (at 00:18) 00:21 NEIC
1165764 2.2 28 Apr 2017 20:23 6.8M, 26km 6.71 1 thousand (in MMI>=VII) 0.2m (at 00:15) 01:06 NEIC
1165893 2.3 28 Apr 2017 20:23 6.9M, 26km 7.23 110 thousand (in MMI>=VII) 0.2m (at 00:13) 22:15 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 Batulaki, Philippines. This height is estimated for 28-Apr-2017 20:38:00.

Alert Date (UTC) Name Country Wave height (m)
28-Apr-2017 20:38:00 Batulaki Philippines  0.2
28-Apr-2017 20:41:00 Lago Philippines  0.1
28-Apr-2017 20:41:00 Burias Philippines  0.1
28-Apr-2017 20:42:64 Cablallan Philippines  0.1
28-Apr-2017 20:42:38 Oalao Philippines  0.1
28-Apr-2017 20:42:38 Katabau Philippines  0.1
28-Apr-2017 20:48:38 Sabang Philippines  0.1
28-Apr-2017 20:48:38 Tubay Philippines  0.1
28-Apr-2017 20:56:00 Pangyan Philippines  0.1
28-Apr-2017 20:27:64 Margus-Pequeno Philippines  0.1
28-Apr-2017 21:06:64 Kling Philippines  0.1
28-Apr-2017 21:06:64 Kansan Philippines  0.1
28-Apr-2017 20:44:00 Tumanao Philippines  0.1
28-Apr-2017 20:44:00 Ibran Philippines  0.1
28-Apr-2017 20:45:64 Glan Philippines  0.1
28-Apr-2017 20:45:64 Sinabulad Philippines  0.1
28-Apr-2017 20:27:38 Katingan Philippines  0.1
28-Apr-2017 20:54:64 Lomoyon Philippines  0.1
28-Apr-2017 21:14:00 Little_Lun Philippines  0.1
28-Apr-2017 20:54:64 Tamblel Philippines  0.1
28-Apr-2017 20:54:64 Buayan Philippines  0.1
28-Apr-2017 20:54:64 Bula Philippines  0.1
28-Apr-2017 20:54:64 Lagao_III Philippines  0.1
28-Apr-2017 21:03:38 Tinto Philippines  0.1
28-Apr-2017 20:36:38 Solome Philippines  0.1
28-Apr-2017 21:03:64 Buadtasan Philippines  0.1
28-Apr-2017 21:03:64 Kiamba Philippines  0.1
28-Apr-2017 20:39:64 Lumit Philippines  0.1
28-Apr-2017 21:35:00 Malapatan Philippines  0.1
28-Apr-2017 20:57:64 Maguling Philippines  0.1
28-Apr-2017 21:23:00 Sapu_Grande Philippines  0.1
28-Apr-2017 21:27:38 Sedem Philippines  0.1
28-Apr-2017 21:27:38 Meti Philippines  0.1
28-Apr-2017 21:27:38 Linao_B Philippines  0.1
28-Apr-2017 21:08:00 Bailat Philippines  0.1
28-Apr-2017 21:08:00 Seguil Philippines  0.1
28-Apr-2017 20:27:64 Kamalian Philippines  0.1
28-Apr-2017 21:03:64 Kalaong Philippines  0.1
28-Apr-2017 21:03:64 Copalcada Philippines  0.1
28-Apr-2017 21:03:64 Linao Philippines  0.1
28-Apr-2017 21:11:00 Kraan Philippines  0.0
28-Apr-2017 20:27:38 Fort_Holland Philippines  0.0
28-Apr-2017 20:30:64 Kipagah Philippines  0.0
28-Apr-2017 20:30:64 Kibayo Philippines  0.0

See full locations list (RSS)


Initial conditions

Title: "M6.8 31km WSW of Balangonan. Philippines"

Fault parameters

  • Latitude: 5.52
  • Longitude: 125.064
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 178 (geogr angle: north=0, south=180)
  • Dip: 49 degree
  • Rake: 90 degree
  • Depth: 26 km

Calculation parameters

  • Calculation space (lon/lat): 122.064, 2.52, 128.064, 8.52
  • Instead of Step -> use Cell size:.5 minutes

Sea Level

More information

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

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