M 6.1 in China on 20 Apr 2015 12:00 UTC

Hazard models

EQ parameters
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: 6.1M
Depth: 29 Km
Lat/Lon: 24.0662 , 122.5121
Event Date: 20 Apr 2015 12:00 UTC
20 Apr 2015 20:00 Local
Exposed Population: 330000 people within 100km
Source: NEIC
Inserted at: 20 Apr 2015 16:37 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1076981 0.5 20 Apr 2015 12:00 6.5M, 38.73km N/A 340 thousand (in 100km) 0m (at 00:00) 00:21 NEIC
1077005 0.6 20 Apr 2015 11:59 6.1M, 20.43km 4.38 490 thousand (in 100km) 03:13 NEIC
1077012 0.5 20 Apr 2015 12:00 6.1M, 29km 4 340 thousand (in 100km) 04:37 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 in China ,of Taiwan (population 2,315,698) . The alertlevel for this event is Green

Intensity Population


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1077005 24.086/122.498 6.1 20.43 4.38 17 Oct 2016 10:30 545d 22:30 (new episode)

Affected Provinces

Intensity Region Province Country Population
Taiwan China 2.3 million people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Kubura Okinawa Japan Village - 61 km
Ao-hua I-lan Taiwan Village - 83 km
Nan-ao I-lan Taiwan City - 83 km
Su-ao I-lan Taiwan City - 87 km
T'ieh-chia-lung-she Hua-lien Taiwan City - 88 km
Hsin-ch'eng Hua-lien Taiwan City - 88 km
Ta-shan Hua-lien Taiwan Village - 92 km
Hua-lien Hua-lien Taiwan Major city - 92 km
Ch'u-yin Hua-lien Taiwan Village - 99 km
Shui-lien Hua-lien Taiwan Village - 102 km
I-lan I-lan Taiwan Major city - 107 km
Sha-lao Hua-lien Taiwan Village - 117 km
Taipei T'ai-pei Chuan-Shih Taiwan Capital 2.5 million people 145 km
Taipeh T'ai-pei Chuan-Shih Taiwan Capital 2.5 million people 145 km

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Yonaguni OGN 21 Civ. Paved Yes 4900 64 km
Hualien HUN 16 Civ. Paved Yes 9000 90 km
9 0 105 km
Sungshan TSA 6 Civ. Paved Yes 8500 145 km

Ports

Intensity Name LOCODE Country Distance
Suao TWSUO Taiwan 87 km
Hualien TWHUN Taiwan 90 km

More information

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