M 4.9 in Taiwan Region on 01 Aug 2022 08:09 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

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: 4.9M
Depth: 10 Km
Lat/Lon: 21.4757 , 121.1941
Event Date: 01 Aug 2022 08:09 UTC
01 Aug 2022 16:09 Local
Exposed Population:
110 thousand in MMI III
Source: NEIC us6000i74a
Inserted at: 01 Aug 2022 08:48 UTC
INFORM Coping capacity of the alert score
1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0.3 0.3
us6000i74a Scaled population (vector) 0  
  C1 rapid impact -0.08  
  C2 rapid impact 0.4  
  Country Vulnerability 0  
  INFORM_normalised 1.71  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1456165 0.3 01 Aug 2022 08:09 4.9M, 10km 3.24 110 thousand (in 100km) 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.

Exposed population

The earthquake happened off shore.

Radius Population
100 km 48000 people
75 km 24000 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Affected populated places

Name Region Province Country City class Population Distance
O-luan-pi P'ing-tung Taiwan City - 62 km
Kenting P'ing-tung Taiwan Village - 67 km
Maobitou P'ing-tung Taiwan City - 70 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Orchid Island KYD 10 Civ. Paved No 4500 71 km
Hengchun HCN 13 Civ. Paved No 3500 79 km

Ports

Name LOCODE Country Distance
Lan Yu Island Taiwan 75 km

Nuclear plants

Name Country Reactors Distance
MAANSHAN TAIWAN 2 71 km

More information

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