1 of 19

Penjalaran Gelombang Seismik

Radhitya Perdhana, S.Si., M.Sc.

1

MPG-1104 SEISMOLOGI

PROGRAM STUDI GEOFISIKA

@rperdhana_geo

Radhitya Perdhana

2 of 19

2

@rperdhana_geo

Radhitya Perdhana

3 of 19

3

@rperdhana_geo

Radhitya Perdhana

4 of 19

4

@rperdhana_geo

Radhitya Perdhana

5 of 19

5

@rperdhana_geo

Radhitya Perdhana

6 of 19

6

@rperdhana_geo

Radhitya Perdhana

7 of 19

7

@rperdhana_geo

Radhitya Perdhana

8 of 19

8

@rperdhana_geo

Radhitya Perdhana

9 of 19

9

@rperdhana_geo

Radhitya Perdhana

10 of 19

10

@rperdhana_geo

Radhitya Perdhana

11 of 19

11

@rperdhana_geo

Radhitya Perdhana

12 of 19

12

@rperdhana_geo

Radhitya Perdhana

13 of 19

13

@rperdhana_geo

Radhitya Perdhana

14 of 19

Seismic phases and travel times in real Earth

14

@rperdhana_geo

Radhitya Perdhana

15 of 19

15

Records of two regional earthquakes of Oct. 9, 1986 at Sierre (left) and of July 7, 1985 at Langenthal, Switzerland together with the calculated reduced travel-time curves (middle) and ray-tracing crustal models which best fit the observations (below), redrawn and complemented from Kulhánek (1990),

@rperdhana_geo

Radhitya Perdhana

16 of 19

16

Two records of a local earthquake at a source depth of h = 6 km in eastern Germany. The strong seismic phase ? between the onsets of Pg and Sg at hypocenter distance of 122 km in the record of station BRG can not be identified by using the simplified set of travel-time curves for surface foci in Fig. 2.48. According to model calculations it is most likely the depth phase sPmP of the large amplitude overcritical reflection PmP from the Moho discontinuity.

@rperdhana_geo

Radhitya Perdhana

17 of 19

17

@rperdhana_geo

Radhitya Perdhana

18 of 19

18

@rperdhana_geo

Radhitya Perdhana

19 of 19

19

@rperdhana_geo

Radhitya Perdhana