M 5.5 in China on 02 Mar 2021 09:23 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: 5.5M
Depth: 35.92 Km
Lat/Lon: 21.9272 , 121.2227
Event Date: 02 Mar 2021 09:23 UTC
02 Mar 2021 17:23 Local
Exposed Population: 450000 people within 100km
Source: NEIC us7000detx
Inserted at: 03 Mar 2021 16:01 UTC
INFORM Coping capacity of the alert score
3.6 (China)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000detx Scaled population (raster) 0  
  C1 shakemap -0.37  
  C2 shakemap 0.76  
  Country Vulnerability 0  
  INFORM_normalised 0.82  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1361431 0 02 Mar 2021 09:23 5.5M, 30.09km 4.02 N/A (in MMI>=VII) 00:15 NEIC
1361717 0 02 Mar 2021 09:23 5.5M, 35.92km 4 N/A (in MMI>=VII) 1d 06:38 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 in China , Province of Taiwan (population 22,456,987) . The nearest places are Yeh-yu, I-la-la-la-k'ou, Hung-t'on, O-luan-pi, Kuo-ch'i, Chiang tzu, Kenting, Hsieh-ma-li, Pa-yao-lu, Hsu-hai, and Shang-fan.

Radius Population
100 km 460000 people
75 km 87000 people
50 km 32000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Taiwan China 22.5 million people
Cagayan Valley Philippines 2.3 million people
Okinawa Japan 1.2 million people
Ilocos Philippines 3.6 million people
Cordillera Administrative Region Philippines 1.1 million people
Fujian China 33.3 million people
Guangdong China 69.6 million people

Affected populated places

Name Region Province Country City class Population Distance
Yeh-yu T'ai-tung Taiwan Village - 33 km
I-la-la-la-k'ou T'ai-tung Taiwan Village - 35 km
Hung-t'on T'ai-tung Taiwan Village - 37 km
O-luan-pi P'ing-tung Taiwan City - 39 km
Kuo-ch'i P'ing-tung Taiwan Village - 42 km
Chiang tzu P'ing-tung Taiwan Village - 43 km
Kenting P'ing-tung Taiwan Village - 44 km
Hsieh-ma-li P'ing-tung Taiwan Village - 45 km
Pa-yao-lu P'ing-tung Taiwan Village - 46 km
Hsu-hai P'ing-tung Taiwan Village - 47 km
Mu-tan P'ing-tung Taiwan Village - 50 km
Heng-chjun P'ing-tung Taiwan City - 51 km
Ta-kuang P'ing-tung Taiwan Village - 51 km
Maobitou P'ing-tung Taiwan City - 51 km
Ta-wu T'ai-tung Taiwan City - 55 km
She-liao P'ing-tung Taiwan Village - 56 km
Che-cheng P'ing-tung Taiwan Village - 56 km
Chia-hsin P'ing-tung Taiwan Village - 59 km
Ta-niao T'ai-tung Taiwan Village - 61 km
Feng-chiang P'ing-tung Taiwan Village - 63 km
Hsia-ta-chi T'ai-tung Taiwan Village - 67 km
Cho-chia-la T'ai-tung Taiwan Village - 67 km
Nei-wen P'ing-tung Taiwan Village - 68 km
Shang-fan T'ai-tung Taiwan Village - 69 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 34 km
Hengchun HCN 13 Civ. Paved No 3500 52 km
Green Island GNI 8 Civ. Paved No 3300 86 km
Feng Nin 42 Civ. Paved Yes 7900 92 km
Taitung TTT 37 Mil. Paved No 11000 96 km

Ports

Name LOCODE Country Distance
Lan Yu Island Taiwan 38 km
Tai Tung Taiwan 92 km

Nuclear plants

Name Country Reactors Distance
MAANSHAN TAIWAN 2 49 km

More information

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