1921.] Angenheister.—A Study of Pacific Earthquakes. 231 
Table IX. —Periods of Main-phase and Coda Waves at Apia and Gottingen. 
Samoa. 
Gottingen. 
Date. 
Epicentre. 
LsM. 
Coda. 
L S M. 
Coda. 
I. Southern Pacific. 
Seconds. 
Seconds. 
Seconds. 
Seconds. 
12/6/1905 
Gilbert Islands 
10 
10 
18-24 
18 
14/6/1905 
South of Rarotonga .. 
17, 9 
10, 5 
18-24 
18 
30/6/1905 
East of Solomons 
17,11 
11 
18 
17/7/1905 
Tonga Deep 
14 
10 
18-24 
18 
14/4/1906 
New Hebrides 
15,11 
9 
. . 
18 
1/6/1906 
New Guinea.. 
27, 14, 18 
14-18 
18 
18 
14/9/1906 
Bismark Archipelago .. 
20, 15 
14, 10 
. • 
18 
2/10/1906 
99 . * 
33-26 
14, 12 
18, 19 
18 
15 
30/3/1910 
Gilbert Islands 
15 
12 
. • 
18 
14/11/1906 
East of New Caledonia 
24, 8, 12 
6, 12 
50-42, 24 
18 
Mean 
11 
18 
II. Asia. 
6/7/1905 
South of Japan 
19 
17 
18 
12, 13 
9/7/1905 
Mongolia 
60-30 
16 
40 
18 
23/7/1905 
99 * * * * 
60-41 
22-16 
40 
18 
15/9/1905 
Kamchatka .. 
28,19 
18 
30 
18 
17-18 
12-20 
21/1/1906 
Japan 
30, 18 
17 
12, 12 
12 
19/6/1906 
Philippines .. 
25, 17 
• • 
40, 30 
12 
17/10/1906 
99 
31, 16 
12 
40-25 
20, 15 
12 
7/9/1906 
Japan 
27, 17, 19 
16 
30, 22, 
12, 13 
19, 15 
15 
12/7/1911 
Philippines .. 
28, 20, 19 
.. 
17, 18 
12 
13/10/1911 
Sakhalin 
20 
16 
12-18 
12 
14/10/1911 
Aleutian Islands 
24, 25, 20 
12-18 
12 
Mean 
16 
14 
I 
II. Europe. 
8/9/1905 
Calabria 
52-36, 21, 
18 
10-15, 9 
12 
19, 18 
19/3/1906 
Iceland-Greenland 
22 
20-18 
19 
10, 11, 12 
Mean 
18 
. 
11 
r 
V. America. 
3/3/1906 
Antilles 
19 
19 
30, 16 
15, 17, 5 
31/1/1906 
Ecuador 
19, 16 
15, 19 
18 
18 
18/4/1906 
San Francisco 
57, 11, 9, 8, 
16 
60, 35, 30, 
18 
5, 17 
22, 20 
17/8/1906 
Chile 
55, 12, 24, 19, 
14, 18 
18, 22, 17 
17, 18 
20, 18, 15 
19/7/1906 
99 
28, 18, 15 
. • 
18 
17, 18 
30/8/1906 
99 * * 
27, 17, 15 
.. 
18 
18, 17 
15/4/1907 
Mexico 
20, 18, 19 
17, 18 
18 
18 
30/7/1909 
99 m • • * * 
38, 19, 17 
• * 
34, 21, 18, 
24 
18 
Mean 
17 
17 
