M 4.5 in Philippines on 22 Jul 2018 06:22 UTC
EQ parameters

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: 4.5M
Depth: 42.52 Km
Lat/Lon: 19.5787 , 121.743
Event Date: 22 Jul 2018 06:22 UTC
22 Jul 2018 14:22 Local
Exposed Population: About 18000 people within 100km
Source: NEIC us2000gb2g
Inserted at: 22 Jul 2018 07:05 UTC
INFORM Coping capacity of the alert score: 4.2 (Philippines)


For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us2000gb2g Scaled population (vector) 4.14  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability -0.18  
  INFORM_normalised 0.89  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1220683 0 22 Jul 2018 06:22 4.5M, 42.52km N/A 20 thousand 00:42 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 Philippines , Region of Cagayan Valley (population 2,341,000) . The nearest places are San Dionisio, Rarasi, Banua, Dadao, Nagsidel, and Kaniwalan.

Radius Population
100 km 18000 people
75 km 6700 people
50 km 5700 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Cagayan Valley Philippines 2.3 million people
Ilocos Philippines 3.5 million people
Cordillera Administrative Region Philippines 1.1 million people
Taiwan China 22.4 million people
Southern Tagalog Philippines 8.2 million people
Central Luzon Philippines 6.1 million people

Affected populated places

Name Region Province Country City class Population Distance
San Dionisio Cagayan Valley Philippines Village5 - 23 km
Rarasi Cagayan Valley Philippines Village5 - 36 km
Banua Cagayan Valley Philippines Village5 - 40 km
Dadao Cagayan Valley Philippines Village5 - 44 km
Nagsidel Philippines Village5 - 46 km
Kaniwalan Philippines Village5 - 47 km

see full list

Critical infrastructure

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


Name LOCODE Country Distance
Calayan Philippines 45 km
Basco Philippines 99 km

More information

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