74 REPORT OF THE CALIFORNIA EARTHQUAKE COMMISSION. 
BERGEN, NORWAY.! 
Seismical Station of the Museum. Prof. Dr. Carl F. Kolderup, director. 
Lat. 60° 24’ N.; long. 5° 18’ E.; altitude, 20 meters; distance, 72.79° or 8,092 km.; 
chord, 7,560 km.; direction, N. 24° E. 
The instruments used were Bosch-Omori horizontal pendulums, two components; 
mechanical registration on smoked paper; V, 15. 






ee witare chet ees aaa espe e Max. Penian | dareueenal 
m. 8. m. 8. m. 8. m. 8. sec. mm, 
(1) North component 22 46 32 09 wee re 54 45 18 5.0 
(2) East component . 22 56 32 20 51 44 55 06 15 50.0 
Average .. . 22 51 32 15 51 44 54 55 
Interval”. = & 10 23 19 47 39 16 42 27 


The great difference between the maximum amplitudes is probably due to differences 
in the periods of the two pendulums. 
EDINBURGH, SCOTLAND, 
Raval Observatory. Thomas Heath, director. 
Late do° 55.5 None, 3? it, We altitude, 131.5 meters; distance, 72.99° or 8,115 
km.; chord, 7,578 km.; direction, N. 31° E. 
Foundation, Devonian lava. 
Seismograms, sheet No. 1. 
The instrument used was a Milne horizontal pendulum, east component. To, 17 
seconds; V, 6.1; J, 440 meters; e¢, 1.11; angular displacement, 1 mm. = 0.54”; M, 
255 gm.; L, 15.6 em. 




ahi | ceeds psa MSs eag a arte pig pete: Mix. Aoriivooe 
min, min. min, min. min. mm. 
East component . 23.9 33.0 48.0 52.0 to 05.6 | 54.2 to 56.7 17+ 
Interval . . 11.0 20.5 35.9 39.5 




Duration, 3.7 hours. 
TOKYO, JAPAN. 
Tokyo Imperial University. Prof. F. Omori, D. Sc., director. 
Lat. 35° 42.5’ N.; long. 189° 46’ E.; distance, 73.92° or 8,217 km.; chord, 7,660 km.; 
direction, N. 57° W. 
Seismograms, sheet No. 11. 
The instrument used was an Omori horizontal pendulum, east component; mechanical 
registration on smoked paper. T'o, 41.5 seconds; V, 80; J, 1,290 meters; M, 16.5kg.; 
L, 75cm, 


(a) First Preuim- | (b) Seconp Pretim- | ReGuyar | (d) PrincipaL Max 
INARY TREMORS. INARY TREMORS. WAVEs. ART, AMPLITUDE. 

ms "8. re A m 8. m. a; 8. m. 8. mm. 
East component 24 35 34 24 46 20 50 15 46 45to48 10); 93+ 
Interval. . 12 07 PA EG 33. 52 ai. «(O47 



‘The information was obtained from “ Registrierungen an der seismischen Station in Bergen in 
Jahre 1906,” by Carl F. Kolderup. Bergens Museum Aarbog, 1907, 2 Hette: A mechanical repro- 
duction of the seismogram there is given. ) 
