Geomagnetic variations could hold key to quake prediction

01:39

01:35

01:15

02:28

01:42

02:03

01:11

01:49

01:20

01:50

01:22

01:30

01:32

02:05

01:25

02:27

02:01

02:02

02:00

02:31

02:01

02:56

00:48

02:24

00:57

00:57

01:25

01:51

01:05

02:01

01:19

00:54

02:31

02:16

01:40

01:52

01:24

01:23

03:27

01:50

01:31

01:11

01:33

00:54

02:17

01:11

02:13

01:09

01:18

03:47

01:02

01:15

04:15

01:42

01:58

01:40

05:38

01:05

01:59

00:52

02:29

01:12

01:03

01:57

02:06

04:21

01:03

01:22

02:02

01:04

01:18

02:23

01:38

01:55

01:15

01:53

01:53

01:12

02:07

00:55

01:16

01:41

01:47

02:28

01:21

00:56

01:19

01:16

02:02

01:20

01:01

02:33

01:31

01:21

01:18

01:29

00:17