1 MAY 2009 (121)
ot = 12:57:09.06 +/- 0.73 BONIN ISLANDS, JAPAN REGION
lat = 26.223 +/- 4.3
lon = 140.547 +/- 4.5 MAGNITUDE 5.4 (GS)
dep = 415.0 +/- 9.4
175 km (110 miles) NNW of Iwo-jima, Volcano Islands, Japan
190 km (120 miles) WSW of Chichi-shima, Bonin Islands, Japan
1050 km (650 miles) S of TOKYO, Japan
nph = 67 of 72 se = 0.87 FE=212 A
error ellipse = (285.6, 72.4, 15.0;151.5, 12.5, 7.0; 58.7, 12.3, 4.9)
mb = 5.4 ( 43) ML = 0.0 ( 0) mblg = 0.0 ( 0) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
MAJO ePn 12:59:30.29 -1.2 10.5 350 MAJO
eS 13:01:28.23 S res = -0.6X
JOW eP 12:59:37.77 0.3 11.0 276 JOW
JNU eP 12:59:38.68 3.0 10.9 312 JNU
eS 13:01:29.87 S res = -6.8X
GUMO eP 13:00:02.12 0.4 13.2 161 GUMO
eS 13:02:28.49 S res = 4.1X
ERM eP 13:00:31.51 1.1 15.9 7 b:4.0+2 1.1 5.8 ERM
INCN eP 13:00:33.51 -1.1 16.3 317 b:2.3+2 .60 5.8 INCN
NACB eP 13:00:43.96 -1.4 17.3 267 NACB
TATO eP 13:00:44.49 -0.5 17.2 270 b:4.7+2 1.8 5.6 TATO
YHNB P 13:00:45.81 -0.8 17.4 269 g:1.5-1 .70 4.7X b:1.2+2 .45 5.6 YHNB
YULB P 13:00:49.56 -0.4 17.7 265 g:2.9-1 .90 4.9X b:2.1+2 .70 5.6 YULB
SSLB eP 13:00:51.80 -0.5 17.9 266 SSLB
TWG eP 13:00:52.30 -1.2 18.0 263 b:1.1+3 .60 6.4X TWG
ASAJ eP 13:00:52.40 0.4 17.9 5 b:9.7+1 .80 5.2 ASAJ
TPUB eP 13:00:55.05 -1.4 18.3 265 b:2.5+2 .60 5.8 TPUB
PEA0BP 13:02:40.15 0.8 29.8 21 PEA0
KKM eP 13:02:49.15 1.1 30.7 233 b:9.9+1 1.1 5.1 KKM
ULN eP 13:03:16.13 0.2 34.0 318 b:8.7+1 .90 5.1 ULN
FX1 eP 13:03:35.09 1.6 36.1 34 FX1
KAPI eP 13:03:41.40 -0.3 37.0 216 b:8.9+1 1.5 4.9 KAPI
KSM eP 13:03:50.86 0.3 38.1 235 b:1.6+1 .50 4.6 KSM
CHTO eP 13:03:58.70 0.7 39.0 268 b:5.3+1 .80 5.0 CHTO
CM31 P 13:04:00.15 1.2 39.1 267 b:2.2+1 .43 4.8 CM31
COEN eP 13:04:06.79 0.6 40.0 176 COEN
ATKA eP 13:04:26.75 -0.1 42.6 40 b:1.3+2 .88 5.3 ATKA
KULM eP 13:04:34.40 1.0 43.4 248 KULM
IPM eP 13:04:34.96 1.0 43.5 247 b:5.6+1 .70 5.0 IPM
WRAB P 13:04:54.42 -1.0 46.3 188 b:4.6+1 .75 4.9 WRAB
UNV eP 13:05:05.00 0.1 47.6 40 UNV
AKUT eP 13:05:08.68 0.1 48.1 40 b:4.4+2 .72 5.9 AKUT
GAMB P 13:05:12.90 0.8 48.5 26 b:1.2+2 .88 5.3 GAMB
ZAA0 P 13:05:16.49 -0.7 49.2 320 ZAA0
AS31 P 13:05:22.75 -0.9 50.0 188 AS31
MK31 P 13:05:23.00 0.4 49.9 310 MK31
TNA P 13:05:29.16 0.4 50.8 25 b:1.9+2 1.3 5.2 TNA
SDPT eP 13:05:31.25 -1.4 51.3 39 b:3.6+2 .80 5.8 SDPT
KURK eP 13:05:41.61 -0.3 52.6 315 KURK
SVW2 eP 13:05:58.48 0.6 54.8 32 SVW2
TKM2 eP 13:05:58.85 1.1 54.7 305 TKM2
OHAK eP 13:06:02.83 0.0 55.5 37 OHAK
AAK P 13:06:03.56 0.0 55.6 305 b:2.7+2 .65 5.7 AAK
eP 13:06:04.21 0.6X
KDAK P 13:06:05.39 -0.3 55.9 36 b:4.3+2 1.2 5.6 KDAK
RSO eP 13:06:07.00 -0.1 56.1 33 RSO
KIP eP 13:06:07.47 0.9 56.0 81 KIP
EKS2 P 13:06:07.95 0.7 56.1 305 b:6.5+1 .85 5.0 EKS2
SPU eP 13:06:09.30 -0.5 56.5 32 SPU
MCK P 13:06:13.44 -8.0X 58.2 30 b:4.3+2 .90 5.9 MCK
MSVF eP 13:06:14.29 1.2 56.9 136 MSVF
TRF P 13:06:16.14 -1.1 57.6 30 b:1.9+2 .90 5.5 TRF
SEW eP 13:06:17.33 -0.6 57.7 34 SEW
STKA P 13:06:18.15 -0.7 57.8 179 b:1.8+0 .55 3.7X STKA
PMR P 13:06:18.52 -1.1 58.0 32 b:1.4+2 .84 5.4 PMR
BRVK P 13:06:18.62 0.1 57.8 318 b:2.4+2 .65 5.8 BRVK
COLD P 13:06:20.80 0.3 58.1 25 b:9.8+1 .96 5.2 COLD
SML P 13:06:21.20 -1.2 58.3 32 b:5.6+1 .80 5.0 SML
KKAR P 13:06:23.70 0.5 58.4 306 b:1.5+2 .65 5.6 KKAR
COLA P 13:06:24.34 -0.8 58.8 28 b:5.5+1 .60 5.2 COLA
MID P 13:06:29.34 0.8 59.3 35 b:9.1+1 .92 5.2 MID
DIV P 13:06:30.64 0.0 59.6 33 b:1.5+2 1.4 5.2 DIV
PAX P 13:06:31.62 -0.2 59.7 31 b:1.5+2 1.0 5.4 PAX
BMRM P 13:06:34.20 -0.2 60.1 33 b:2.4+2 .82 5.7 BMRM
DOT P 13:06:35.54 -0.5 60.4 30 b:8.6+1 .82 5.3 DOT
KBL P 13:06:41.94 0.3 61.1 297 b:1.8+2 .85 5.6 KBL
EGAK P 13:06:43.57 -0.7 61.6 28 b:4.5+1 .73 5.1 EGAK
PNL P 13:06:51.92 0.0 62.8 34 b:1.1+2 .78 5.5 PNL
XMAS P 13:07:01.81 0.7 64.1 101 b:9.1+1 .73 5.5 XMAS
ABKARP 13:07:03.95 -0.2 64.7 314 b:1.2+2 .68 5.7 ABKA
WRAK e 13:07:19.45 -0.7 67.2 37 b:9.0+1 1.0 5.4 WRAK
KEBM P 13:08:12.56 -0.6 76.2 49 b:2.7+2 .94 5.9 KEBM
Generated 2009 MAY 1 at 13:10 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
