A major magnitude 7.0 earthquake occurred in Northern Peru this afternoon. At a depth of 145 km it shows minimal surface phases and because it is south of my location in northeastern Ohio the transverse S-phase arrival is strong.
The travel time information from the USGS Travel Time calculator is shown below:
DATE-(UTC)-TIME LAT LON DEPTH MAG Q COMMENTS
2011/08/24 17:46:11 7.64S 74.51W 145.1 7.0 US: NORTHERN PERU
Expected 1s period body wave amplitude [ 3.06E+00 µm] [ 1.92E+01 µm/s]
delta azimuth (degrees clockwise from north)
(deg) eq-to-station station-to-eq
48.44 352.5 170.2
travel arrival time
# code time(s) dy hr mn sec
1 P 507.44 0 17 54 38
2 pP 540.38 0 17 55 11
3 sP 556.85 0 17 55 27
4 PcP 591.27 0 17 56 2
5 PP 621.51 0 17 56 32
6 PP 624.66 0 17 56 35
7 ScP 812.11 0 17 59 43
8 PcS 827.54 0 17 59 58
9 S 917.67 0 18 1 28
10 sS 975.47 0 18 2 26
11 PKiKP 1000.78 0 18 2 51
12 pPKiKP 1039.54 0 18 3 30
13 sPKiKP 1054.61 0 18 3 45
14 ScS 1084.90 0 18 4 15
15 SS 1130.91 0 18 5 1
16 SS 1142.47 0 18 5 13
17 SKiKP 1199.19 0 18 6 10
18 PKKPdf 1871.17 0 18 17 22
19 SKKPdf 2069.62 0 18 20 40
20 PKKSdf 2084.70 0 18 20 55
21 SKKSdf 2283.03 0 18 24 14
22 P'P'df 2374.35 0 18 25 45
23 P'P'ab 2425.45 0 18 26 36
24 S'S'df 3215.45 0 18 39 46
25 LQ 1229.43 0 18 6 40
26 LR 1364.50 0 18 8 55
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