M 6.8 in Nicaragua from 21 Apr 2022 07:42 UTC to 07:42

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: 6.8M
Depth: 10 Km
Event Date: 21 Apr 2022 07:42 UTC
21 Apr 2022 01:42 Local
Exposed Population: 390 thousand in 100km
Source: NTWC at00raoirb
Inserted at: 21 Apr 2022 08:01 UTC
INFORM Coping capacity of the alert score:
5.3 (Nicaragua)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC 0 0.2 0.2
at00raoirb Scaled population (vector) 4.8 Max wave alert 0.27m  
  C1 earthquake 1 Max wave realtime 0.27m  
  C2 earthquake 0      
  Country Vulnerability -1      
  INFORM_normalised 1.02      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1438332 0.2 21 Apr 2022 07:42 6.8M, 10km N/A 370 thousand (in 100km) 0.3m (at 00:43) 00:11 PTWC
1438333 0.2 21 Apr 2022 07:42 6.8M, 10km N/A 390 thousand (in 100km) 0.3m (at 00:42) 00:18 NTWC
1438335 0 21 Apr 2022 07:42 6.7M, 25.33km 5.42 N/A (in MMI>=VII) 0.1m (at 00:40) 00:23 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  0.3m in El Tinco, Nicaragua. This height is estimated for 21-Apr-2022 08:24:86.

Alert Date (UTC) Name Country Wave height (m)
21-Apr-2022 08:24:86 El Tinco Nicaragua  0.3
21-Apr-2022 08:24:86 Salamina Nicaragua  0.3
21-Apr-2022 08:23:13 El Zapote Nicaragua  0.2
21-Apr-2022 08:26:35 El Amparo Nicaragua  0.2
21-Apr-2022 08:26:35 El Transito Nicaragua  0.2
21-Apr-2022 08:21:35 San Juan Nicaragua  0.2
21-Apr-2022 08:21:17 Loma Alegre Nicaragua  0.2
21-Apr-2022 08:23:13 Masachapa Nicaragua  0.2
21-Apr-2022 08:21:35 Huiste Nicaragua  0.2
21-Apr-2022 08:31:36 San Jose Nicaragua  0.2
21-Apr-2022 08:34:93 Puerto Somoza Nicaragua  0.1
21-Apr-2022 08:38:45 Salinas Grandes Nicaragua  0.1
21-Apr-2022 08:40:27 Candelaria Nicaragua  0.1
21-Apr-2022 08:22:74 Boquita Nicaragua  0.1
21-Apr-2022 08:23:13 Casares Nicaragua  0.1
21-Apr-2022 08:30:65 Ahuchuetes Nicaragua  0.1
21-Apr-2022 08:40:56 Poneloya Nicaragua  0.1
21-Apr-2022 08:40:56 El Carmen Nicaragua  0.1
21-Apr-2022 08:44:24 Linda Vista Nicaragua  0.1
21-Apr-2022 08:44:24 Puerto el Barquito Nicaragua  0.1
21-Apr-2022 09:13:92 San Lorenzo Nicaragua  0.1
21-Apr-2022 09:13:92 San Juan del Sur Nicaragua  0.1
21-Apr-2022 09:13:92 El Socorro Nicaragua  0.1
21-Apr-2022 09:28:07 Veracruz Nicaragua  0.1
21-Apr-2022 08:44:91 Escameca Nicaragua  0.1
21-Apr-2022 08:48:37 El Jobo Costa Rica  0.1
21-Apr-2022 08:55:28 Las Delicias Nicaragua  0.1
21-Apr-2022 08:41:85 Brito Nicaragua  0.1
21-Apr-2022 08:55:06 Nacascolo Costa Rica  0.1
21-Apr-2022 08:55:06 Panama Costa Rica  0.1
21-Apr-2022 09:44:34 Fatima Nicaragua  0.1
21-Apr-2022 08:52:27 Cuatro Caminos Nicaragua  0.1
21-Apr-2022 08:52:27 Puerto Soleo Costa Rica  0.1
21-Apr-2022 08:54:45 Pinilla Costa Rica  0.1
21-Apr-2022 08:56:72 Las Salinas Nicaragua  0.1
21-Apr-2022 08:55:06 Coco Costa Rica  0.1
21-Apr-2022 09:39:44 El Ostional Nicaragua  0.1

See full locations list (RSS)


Initial conditions

Title: ""61 km WSW of Masachapa""

Fault parameters

  • Latitude: 11.5
  • Longitude: -87
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 313 (geogr angle: north=0, south=180)
  • Dip: 25 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): -90, 8.5, -84, 14.5
  • 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.