M 6.9 in Ecuador from 18 Mar 2023 17:12 UTC to 17:12

Hazard models

Rapid Impact
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: 6.9M
Depth: 75 Km
Event Date: 18 Mar 2023 17:12 UTC
18 Mar 2023 12:12 Local
Exposed Population: 620 thousand (in MMI>=VII)
Source: PTWC pt23077000
Inserted at: 18 Mar 2023 17:21 UTC
INFORM Coping capacity of the alert score:
4.3 (Ecuador)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 Tsunami GDACS score
PTWC 2.1 0 2.1
pt23077000 Scaled population (vector) 4.85 Max wave alert 0m  
  C1 rapid impact -0.59 Max wave realtime 0m  
  C2 rapid impact 0.53      
  Country Vulnerability 0      
  INFORM_normalised 1.85      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1496194 2.1 18 Mar 2023 17:12 6.9M, 75km 7.16 620 thousand (in 100km) 0m (at 00:00) 00:08 PTWC
1496199 1.6 18 Mar 2023 17:12 6.7M, 65.652km 6.8 110 thousand (in MMI>=VII) 0m (at 00:00) 00:16 NEIC
1496206 2.7 18 Mar 2023 17:12 6.8M, 66.421km 7.11 650 thousand (in MMI>=VII) 0m (at 00:00) 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

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: ""14 km SSE of Naranjal""

Fault parameters

  • Latitude: -2.781
  • Longitude: -79.55
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 8 (geogr angle: north=0, south=180)
  • Dip: 10 degree
  • Rake: 90 degree
  • Depth: 75 km

Calculation parameters

  • Calculation space (lon/lat): -82.55, -5.781, -76.55, .219
  • Instead of Step -> use Cell size:.5 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.