Pacific Northwest Geodetic Array
Central Washington University

Geodetic monitoring of transient deformation
along the Pacific-North American plate boundary

Map of all stations included in all clusters in these pages

This page integrates daily GPS measurements from ~1500 stations along the Pacific/North American plate boundary, ranging from Alaska to the U.S-Mexico border (click on figure to right). Cleaned, network solutions from several arrays are merged below and grouped into regional clusters. Arrays include the Pacific Northwest Geodetic Array, EarthScope's Plate Boundary Observatory, the Western Canadian Deformation Array, and networks run by the US Geological Survey. Map images below link to station locations. Data image thumbnails update daily, and link to positions updated daily. Time series from the Plate Boundary Observatory network are merged GAMIT and GIPSY solutions from UNAVCO, Inc., while PANGA stations from Washington, Oregon and northernmost California are GIPSY-only solutions computed by the CWU Geodesy Lab with support from the USGS, NASA, and the National Science Foundation. All CWU time series & all PBO data can be downloaded.

The data grouped into clusters around Cascadia volcanoes are rotated into cylindrical coordinates centered on the specified volcanic edifice. Motions are labeled "Away" (radially from the volcanic center, with outward motions positive) and "Tangential" (with counter-clockwise motions positive).


Jump to: Top of Page | Station Clusters | Custom Event Clusters | Volcano Clusters

Station Clusters

  East-West North-South Vertical

ABR
(AK, Brooks Range)

Map of cluster ABR
Link to longitude data Link to latitude data Link to radial data

ASC
(AK, Sub-Artic Coastal Plains)

Map of cluster ASC
Link to longitude data Link to latitude data Link to radial data

AAR
(AK, Alaska Range)

Map of cluster AAR
Link to longitude data Link to latitude data Link to radial data

ACI
(AK, Cook Inlet)

Map of cluster ACI
Link to longitude data Link to latitude data Link to radial data

ASE
(AK, Southeast)

Map of cluster ASE
Link to longitude data Link to latitude data Link to radial data

AAI
(AK, Aleutian Islands)

Map of cluster AAI
Link to longitude data Link to latitude data Link to radial data

BCR
(BC, Cordillera Region)

Map of cluster BCR
Link to longitude data Link to latitude data Link to radial data

WCO
(WA, Columbia Basin & Okanogan Highlands)

Map of cluster WCO
Link to longitude data Link to latitude data Link to radial data

WPL
(WA, Puget Lowlands)

Map of cluster WPL
Link to longitude data Link to latitude data Link to radial data

WNC
(WA, N. Cascades)

Map of cluster WNC
Link to longitude data Link to latitude data Link to radial data

WOP
(WA, Olympic Peninsula)

Map of cluster WOP
Link to longitude data Link to latitude data Link to radial data

WWH
(WA, Willapa Hills)

Map of cluster WWH
Link to longitude data Link to latitude data Link to radial data

WSC
(WA, S. Cascades)

Map of cluster WSC
Link to longitude data Link to latitude data Link to radial data

OCK
(OR, Coast Range & Klamath Mts)

Map of cluster OCK
Link to longitude data Link to latitude data Link to radial data

OCW
(OR, Cascade Range & Willamette Valley)

Map of cluster OCW
Link to longitude data Link to latitude data Link to radial data

OCB
(OR, Columbia Plateau & Blue Mts)

Map of cluster OCB
Link to longitude data Link to latitude data Link to radial data

OBL
(OR, Basin & Range, & High Lava Plains)

Map of cluster OBL
Link to longitude data Link to latitude data Link to radial data

CCN
(CA, Coastal Ranges (North))

Map of cluster CCN
Link to longitude data Link to latitude data Link to radial data

CCR
(CA, Cascade Range)

Map of cluster CCR
Link to longitude data Link to latitude data Link to radial data

CMP
(CA, Modoc Plateau)

Map of cluster CMP
Link to longitude data Link to latitude data Link to radial data

CCD
(CA, Coastal Ranges (Mendocino))

Map of cluster CCD
Link to longitude data Link to latitude data Link to radial data

CGN
(CA, Great Valley (North))

Map of cluster CGN
Link to longitude data Link to latitude data Link to radial data

CSN
(CA, Sierra Nevada (North))

Map of cluster CSN
Link to longitude data Link to latitude data Link to radial data

CBN
(CA, Basin & Range (North))

Map of cluster CBN
Link to longitude data Link to latitude data Link to radial data

CCS
(CA, Coastal Ranges (Santa Cruz))

Map of cluster CCS
Link to longitude data Link to latitude data Link to radial data

CCM
(CA, Coastal Ranges (Monterey))

Map of cluster CCM
Link to longitude data Link to latitude data Link to radial data

CGW
(CA, Great Valley (West))

Map of cluster CGW
Link to longitude data Link to latitude data Link to radial data

CSE
(CA, Sierra Nevada (East))

Map of cluster CSE
Link to longitude data Link to latitude data Link to radial data

CCB
(CA, Coastal Ranges (Santa Barbara))

Map of cluster CCB
Link to longitude data Link to latitude data Link to radial data

CBR
(CA, Basin & Range)

Map of cluster CBR
Link to longitude data Link to latitude data Link to radial data

CTN
(CA, Transverse Ranges (North))

Map of cluster CTN
Link to longitude data Link to latitude data Link to radial data

CTS
(CA, Transverse Ranges (South))

Map of cluster CTS
Link to longitude data Link to latitude data Link to radial data

CDT
(CA, Desert)

Map of cluster CDT
Link to longitude data Link to latitude data Link to radial data

CPR
(CA, Peninsular Ranges)

Map of cluster CPR
Link to longitude data Link to latitude data Link to radial data

Jump to: Top of Page | Station Clusters | Custom Event Clusters | Volcano Clusters

Custom Event Clusters

02_custom
(02 May 2008 event)

Map of cluster 02_custom
Link to longitude data Link to latitude data Link to radial data

01_custom
(15 April 2007 event)

Map of cluster 01_custom
Link to longitude data Link to latitude data Link to radial data

Jump to: Top of Page | Station Clusters | Custom Event Clusters | Volcano Clusters

Cascades Volcano Clusters

volcano-c_lake-distal
(Crater Lake - Distal)

Map of cluster volcano-c_lake-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-glacier-distal
(Glacier Peak - Distal)

Map of cluster volcano-glacier-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-lassen-distal
(Lassen Peak - Distal)

Map of cluster volcano-lassen-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-lassen-proximal
(Lassen Peak - Proximal)

Map of cluster volcano-lassen-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-mlake-distal
(Medicine Lake Volcano - Distal)

Map of cluster volcano-mlake-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-mlake-proximal
(Medicine Lake Volcano - Proximal)

Map of cluster volcano-mlake-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-adams-distal
(Mount Adams - Distal)

Map of cluster volcano-adams-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-adams-proximal
(Mount Adams - Proximal)

Map of cluster volcano-adams-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-baker-distal
(Mount Baker - Distal)

Map of cluster volcano-baker-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-hood-distal
(Mount Hood - Distal)

Map of cluster volcano-hood-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-hood-proximal
(Mount Hood - Proximal)

Map of cluster volcano-hood-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-jefferson-distal
(Mount Jefferson - Distal)

Map of cluster volcano-jefferson-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-rainier-distal
(Mount Rainier - Distal)

Map of cluster volcano-rainier-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-rainier-proximal
(Mount Rainier - Proximal)

Map of cluster volcano-rainier-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-msh-distal
(Mount Saint Helens - Distal)

Map of cluster volcano-msh-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-msh-proximal
(Mount Saint Helens - Proximal)

Map of cluster volcano-msh-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-shasta-distal
(Mount Shasta - Distal)

Map of cluster volcano-shasta-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-shasta-proximal
(Mount Shasta - Proximal)

Map of cluster volcano-shasta-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-newberry-distal
(Newberry Volcano - Distal)

Map of cluster volcano-newberry-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-newberry-proximal
(Newberry Volcano - Proximal)

Map of cluster volcano-newberry-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-simcoe-distal
(Simcoe Volcano - Distal)

Map of cluster volcano-simcoe-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-simcoe-proximal
(Simcoe Volcano - Proximal)

Map of cluster volcano-simcoe-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-s_oregon-distal
(Southern Oregon Volcanoes - Distal)

Map of cluster volcano-s_oregon-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-ts-distal
(Three Sisters Volcanic Center - Distal)

Map of cluster volcano-ts-distal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data

volcano-ts-proximal
(Three Sisters Volcanic Center - Proximal)

Map of cluster volcano-ts-proximal
Link to tangential data Link to radial (relative to volcano) data Link to vertical data