7/23/2019 Modul Percobaan

http://slidepdf.com/reader/full/modul-percobaan 1/2

MODUL OF RESEARCH

1. AIM OF RESEARCH

- Measure the angle of subduction by using earthquake

data in south of Wonosari, center of Java

2. MATERIALS AND TOOLS

- PC- Google Earth application- Calculator- nternet connection

3. THEORY OF RESEARCH

- !actor of subduction is convergen "ove"ent bet#een

t#o plates- $ceanic crust "ove to the botto" of continental crust

and that "ove"ent #ill for" %ona subduction #ith the

certain angle- &o "easure the angle of subductions, #e "ust have

hipocentru" and epicentru" data and "easure it byusing &'(-)*

 &'(-) + ./0 or &'(-) + 1ipocentru".epicentru"0

4. METHODS OF RESEARCH

a2 &urn on the laptopb2 Connect laptop to the internet connectionc2 $pen google earth

d2 3eter"ine the location of trench pointe2 4ook at the Wonosari area and choose about )5

earthquakes at theref2 6ecord the 3ata of each earthquake have chosen,

include * date, ti"e, coordinate, depthhipocentru"0,

and "agnitudeg2 7tretch line by using 8rules9 tool fro" trench point to

the earthquake have chosenh2 Make sure that line and trench for" the angle :55

7/23/2019 Modul Percobaan

http://slidepdf.com/reader/full/modul-percobaan 2/2

i2 !ro" that line, #e can kno# the distance fro" trench

point to the earthquake, that distance is an epicentru"

of earthquake ;2 6epeat step g0, h0, and i0 for each earthquake have

chosen so #e can get epicentru" data of all eartquakechosen

k2 !ro" hipocentru" and epicentru" data, #e can

"easure the angle of subduction arround trench point

have chosen by using &'(-) la#l2 'fter #e have )5 data of subduction angle, "ake

average fro" it and #e can get an 'ngle os

7ubductions