Phase Data
Explanation of Parameters
1 MAY 2008 (122)
ot = 03:55:35.00 +/- 0.00 SOUTHERN CALIFORNIA
lat = 33.443 +/- 0.0
lon = -116.454 +/- 0.0 MAGNITUDE 4.2 (PAS)
dep = 10.8 +/- 0.0
20 km (15 miles) NNW of Borrego Springs, California (pop 2,500)
40 km (25 miles) SW of Indio, California (pop 49,000)
45 km (25 miles) S of Palm Springs, California (pop 42,000)
730 km (455 miles) SE of SACRAMENTO, California
ML 4.2 (PAS). Felt (IV) at Anza; (III) at Aguanga, Alpine,
Banning, Borrego Springs, Carlsbad, Cathedral City, Coachella,
Coronado. Escondido, Hemet, Idyllwild, Indian Wells, Indio, La
Jolla, La Quinta, Moreno Valley, Mountain Center, Palm Desert,
Palm Springs, Rancho Mirage, San Diego, San Jacinto, Sun City,
Temecula, Thermal, Vista, Warner Springs and Winchester; (II) at
Bonsall, Del Mar, Desert Hot Springs, El Cajon, El Centro, Julian,
La Mesa, Lakeside, Menifee, Murrieta, Oceanside, Poway, Ramona,
Redlands, Riverside, San Marcos, Santa Ysabel, Spring Valley and
Valley Center. Also felt at Bell, Bonita, Cabazon, Calexico,
Campo, Encinitas, Fallbrook, Glendale, Imperial, Imperial Beach,
Joshua Tree, Laguna Niguel, Lake Elsinore, Lake Forest, Lemon
Grove, Mecca, Nuevo, Pauma Valley, Perris, Santee, Solana Beach,
Thousand Palms and White Water.
nph = 29 of 43 se = 0.00 FE=043 held
error ellipse = ( 0.0, 0.0, 0.0; 0.0, 0.0, 0.0; 0.0, 0.0, 0.0)
mb = 0.0 ( 0) ML = 3.7 ( 11) mblg = 0.0 ( 0) md = 4.2 ( 5) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
PFO ePg 03:55:39.29 0.5 0.2 360 L:5.6+1 .50 3.2 PFO
eSg 03:55:41.75 S res = 0.3X
BAR ePg 03:55:50.09 0.0 0.8 194 d:2.1+2 4.1 L:4.0+0 .22 3.5 BAR
eSg 03:56:00.25 S res = -0.1X
GLA ePn 03:55:59.34 -1.5 1.4 106 d:2.1+2 4.3 L:1.7+0 .65 3.5 GLA
eSg 03:56:17.31 S res = -3.3X
MWC ePn 03:56:03.28 0.6 1.5 301 d:1.7+2 4.2 L:5.9+0 .38 4.1 MWC
eSg 03:56:24.10 S res = -0.7X
PASC ePb 03:56:04.22 -0.6 1.6 297 d:1.5+2 4.1 L:6.4+0 .47 4.2 PASC
GSC ePn 03:56:07.50 0.3 1.9 351 d:1.9+2 4.4 L:7.6-1 .65 3.4 GSC
eSg 03:56:34.98 S res = -0.4X
LDFC ePn 03:56:11.08 2.5 2.0 34 LDFC
eSg 03:56:39.16 S res = 0.6X
OSI ePn 03:56:12.57 0.8 2.2 302 L:7.8-1 .60 3.6 OSI
ePg 03:56:17.79 0.3X
SNCC ePn 03:56:17.14 0.4 2.6 267 SNCC
ISA ePn 03:56:19.72 0.3 2.8 324 d:2.1+2 4.8X L:8.2-1 .53 3.9 ISA
ePg 03:56:27.32 -0.8X
SHPR ePn 03:56:26.61 0.7 3.2 19 SHPR
WUAZ ePn 03:56:47.40 1.7 4.7 62 L:1.0-1 .77 3.8 WUAZ
TUC ePn 03:56:47.65 -1.1 4.9 102 TUC
CCUT ePn 03:56:49.16 1.5 4.8 31 L:5.0-2 1.3 3.5 CCUT
ARUT ePn 03:56:51.00 1.1 5.0 29 d:2.0+2 5.7X L:9.2-2 .94 3.8 ARUT
ePg 03:57:08.29 -2.1X
SAO ePn 03:56:54.48 0.8 5.3 310 SAO
NVAR Pn 03:56:54.80 1.9 5.2 344 NVAR
Pg 03:57:11.65 -2.9X
Lg 03:58:20.43
CMB ePn 03:56:57.43 -0.7 5.6 326 CMB
WAKR ePn 03:56:58.20 -0.2 5.6 335 WAKR
MSU ePn 03:57:07.13 1.3 6.1 33 MSU
MVCO ePn 03:57:21.33 -3.3 7.5 58 d:2.3+2 6.8X L:5.7-2 .75 4.1X MVCO
b:2.3+1 .63 5.5X
DUG ePn 03:57:23.18 0.9 7.3 22 DUG
ePg 03:57:51.88 -3.7X
SRU ePn 03:57:23.24 0.0 7.4 39 SRU
PAHR ePg 03:57:40.82 -2.1 6.7 340 PAHR
MNTX ePn 03:57:52.36 0.5 9.5 98 MNTX
SMCO ePn 03:57:54.12 1.3 9.6 50 SMCO
PDAR Pn 03:58:15.34 5.9 10.8 28 PDAR
Lg 04:01:14.90
TXAR Pn 03:58:23.63 2.1 11.7 107 TXAR
Lg 04:01:44.20
ULM P 04:00:39.60 3.9 22.6 36 ULM
Generated 2008 MAY 25 at 04:43 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
