M 6.9 in China on 18 Sep 2022 06:44 UTC

Hazard models

EQ parameters
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: 6.9M
Depth: 10 Km
Event Date: 18 Sep 2022 06:44 UTC
18 Sep 2022 14:44 Local
Exposed Population: About 54000 people in MMI
140 thousand (in MMI>=VII)
Source: NEIC us7000i90q
Inserted at: 18 Sep 2022 07:27 UTC
INFORM Coping capacity of the alert score:
3.6 (Taiwan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 1 0.4 1
us7000i90q Scaled population (raster) 4.65 Max wave alert 0.41m  
  C1 shakemap -0.59 Max wave realtime 0.41m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.82      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1462665 0.1 18 Sep 2022 06:44 6.8M, 10km N/A 2.3 million (in 100km) 0.2m (at 00:00) 00:10 GEOFON
1462666 0.8 18 Sep 2022 06:44 7.2M, 10km N/A 1.8 million (in 100km) 0.9m (at 00:25) 00:12 NTWC
1462674 1 18 Sep 2022 06:44 7.2M, 10km 8.12 150 thousand (in MMI>=VII) 0.9m (at 00:19) 00:23 NEIC
1462682 1 18 Sep 2022 06:44 6.9M, 10km 8.24 140 thousand (in MMI>=VII) 0.4m (at 00:00) 00:43 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  0.4m in Hsin-i, Taiwan. This height is estimated for 18-Sep-2022 06:44:00.

Alert Date (UTC) Name Country Wave height (m)
18-Sep-2022 06:44:00 Hsin-i Taiwan  0.4
18-Sep-2022 06:44:00 Cheng-kung Taiwan  0.4
18-Sep-2022 06:44:00 Tu-ho Taiwan  0.4
18-Sep-2022 07:09:06 Wu-shih Pi Taiwan  0.2
18-Sep-2022 06:52:43 San Hsien Tai Taiwan  0.2
18-Sep-2022 07:14:27 Chia-lu-lan Taiwan  0.1
18-Sep-2022 07:08:09 Hsin-ch'ang-ts'un Taiwan  0.1
18-Sep-2022 07:21:33 Ta-wu Taiwan  0.1
18-Sep-2022 07:08:09 Chi-hsing Taiwan  0.1
18-Sep-2022 07:21:33 Ta-niao Taiwan  0.1
18-Sep-2022 08:26:98 Chia-li-wan Taiwan  0.1
18-Sep-2022 07:13:05 Feng-pin Taiwan  0.1
18-Sep-2022 08:02:84 Su-ao Taiwan  0.1
18-Sep-2022 08:01:31 Hoshitate Japan  0.1
18-Sep-2022 08:09:92 Tou-cheng Taiwan  0.1
18-Sep-2022 07:09:06 Chia-tsou-wan Pi Taiwan  0.1
18-Sep-2022 07:09:06 Chien-ho Taiwan  0.1
18-Sep-2022 07:09:06 Tai-tung Taiwan  0.1
18-Sep-2022 07:40:82 Hsu-hai Taiwan  0.1
18-Sep-2022 07:44:67 Kuo-ch'i Taiwan  0.1
18-Sep-2022 08:06:96 Shui-lien Taiwan  0.1
18-Sep-2022 07:44:17 O-luan-pi Taiwan  0.1

See full locations list (RSS)


Initial conditions

Title: ""M 6.9, Taiwan""

Fault parameters

  • Latitude: 23.159
  • Longitude: 121.316
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 180 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): 118.316, 20.159, 124.316, 26.159
  • 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.