Philippines: Seismic Events In April 2017
Map legend
The Philippines, which lies along the Pacific Ring of Fire, is frequented by
seismic and volcanic activities. According to the Philippine Institute of
Volcanolgy and Seismology (PHIVOLCS), around 100-150 earthquakes
per year (with magnitude of 4.0 and above) have been felt from year
1600s to early 2000. This year, PHIVOLCS has recorded 122 earthquakes
< 5.0 Mg.
5.1 - 6.0 Mg.
> 6.0 Mg.
with a magnitude of 4.0 and above from January to
April, 59 of these were in April alone. Three
significant earthquakes in April 2017
affected the provinces of Batangas in
Luzon, Lanao del Sur and Sarangani
in Mindanao. These events and its
subsequent aftershocks caused
minor to severe damages to
structures and displaced
several people in the
affected provinces.
946
events in
64%
LEMERY
CUENCA
Balayan bay
CALATAGAN
TAAL
SANTA
TERESITA
Active Fault
Collision zone
0
SAN LUIS
Trace approximate
BAUAN
Transform Fault
(
Trench
Luzon
36%
Inland
Lub
a
ng
Lubang Fault
49
24
9 8
1
2
3
4
5
Bukidnon
MF
6
7
8
9
BUBONG
:W
est
ern
Min
dan
ao
Ext
ens
ion
21 22 18 19 20
16 18
ao
Lan
stem
MAGUING
lt Sy
Fau
Davao
Occidental
Mag. 6.0
12 April 2017
BUMBARAN
Lake Lanao
Lanao del sur
BUTIG
Mindanao
WAO
Celebes sea
Daily Number of
Events in April 2017
34
27 31
11
lt
Iligan bay
Visayas
Saranggani
36
37
23
Fau
Verde island passage
110
545
237
42
11
1
53 56
BATANGAS
CITY
(Capital)
TINGLOY
MANILA
Number of
events
62 58
Mag. 6.0
8 April 2017
Mag. 5.5
4 April 2017
83
74
IBAAN
Batangas
MABINI
Offshore
2.0 and below
2.1 to 3.0
3.1 to 4.0
4.1 to 5.0
5.1 to 6.0
Above 6.0
SAN
PASCUAL
Approximate offshore
projection
April 2017
Magnitude
range
SAN JOSE
ALITAGTAG
44 41
12
19
7
14
Cotobato
Magnitude 7.2
29 April 2017
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
The boundaries, names shown and the designations used on this map do not imply official endorsement or acceptance by the United Nations Creation date: 3 May 2017 Sources: PSA (administrative boundaries) and PHIVOLCS Seismological Observation and Earthquake Prediction Division (http://www.phivolcs.dost.gov.ph/html/update_SOEPD/EQLatest.html)