PATRICIA PEDRAZA GARCIA

SERVICIO GEOLOGICO COLOMBIANO

RED SISMOLOGICA NACIONAL DE COLOMBIA

Diciembre 10, 2013

09 de Febrero de 2013, 14:16:7.20 Mw=7.0

Lat: 1.152

Lon: -77.586

Depth: 152.6 km

RELOCATION - Hypocenter

Near stations

lat long depth hh mm ss

RSNC 1.113 -77.6 163 14 16 5.7

Relocation 1.152 -77.6 152.6 14 16 7.2

Broad Band Stations

RSNC

OVS

GNS

STATIONS

Distance

140km -600km

Search depth

150 km

2 km

166 km

10 source 10 source

160 km

TIME FUCTION

Time Function

T.F. (s) DC% VR STVAR Mw depth

DELTA 54.4 0.7 0.35 6.8 162

5 55.1 0.68 0.3 6.8 165

10 54.8 0.69 0.27 6.8 165

15 55.2 0.68 0.33 6.8 165

20 55.7 0.67 0.33 6.8 165

6 54.1 0.7 0.35 6.8 166

7 54.2 0.69 0.35 6.8 166

Source on a horizontal plane low frecuency – centroide

Depth: 166 km

Reference: 25

North = 0° East= 10 km

North = 0° East= 10 km

Fault plane

YYYY MM DD HH MM SS LAT LON DEPTH Ml

2013 2 9 14 33 27.3 1.291 -77.585 130 2.1

2013 2 9 14 41 40.9 1.206 -77.594 146.9 3.2

2013 2 9 15 21 34.4 1.25 -77.621 138.1 1.7

2013 2 9 22 45 34.6 1.315 -77.596 147.9 1.6

2013 2 10 8 50 51.2 1.176 -77.585 152 2.8

2013 2 10 23 28 10.1 1.173 -77.555 154.4 1.7

2013 4 21 3 9 4.5 1.177 -77.649 154.2 1.9

AFTERSHOCKS

268° / 74° / 9°

North = 0° East= 10 km

LOW FREQUENCY

0.01 - 0.03

176° / 81° / 164°

North = 0° East= 10 km

2 sources – fixed mechanims

• low frequency

• 0.01 0.01 - 0.03 0.03 Hz

268° / 74° / 9°

Sub 1 / sub 2 = 6.3

2 sources – fixed mechanims

High frequency

0.01 0.01 - 0.14 0.15 Hz

268° / 74° / 9°

Sub 1 / sub 2 = 2.6

176° / 81° / 164°

2 sources – fixed mechanims

• High frequency

• 0.01 0.01 - 0.14 0.15 Hz

Sub 1 / sub 2 = 2.6

2 sources – free mechanims

• High frequency

• 0.01 0.01 - 0.14 0.15 Hz

First fault

free Sub 1 / sub 2 = 4.7