Name: Relocated Earthquakes >1M

Display Field: EARTHQUAKE_MAGNITUDE

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This point feature class includes relocated earthquake hypocenters throughout the state of Washington. For each event, there are calculated latitude and longitude coordinates, a calculated depth, an oberved date and time, and a determined magnitude. Earthquake data was obtained from the Pacific Northwest Seismic Network (PNSN) (Steve Malone, 2011, written commun.). The earthquake hypocenter relocation method used in this study uses the double-difference algorithm of Waldhauser and Ellsworth (2000). This algorithm is based on the ray paths from two earthquakes close to a common station being almost identical, and the difference in observed travel time can therefore be attributed with a high accuracy to the spatial offset of the two earthquakes (Waldhauser and Ellsworth, 2000). This study uses a hypocenter relocation computer program developed by Felix Waldhauser of the United States Geological Survey (USGS) called hypoDD,that applies this concept to a cluster of earthquakes and determines the offset between each earthquake relative to one another. Funding for this data compilation was provided through a U.S. Department of Energy geothermal grant.

Service Item Id: 2ec0f95ef42b467c9231e67a5611fcfe

Copyright Text:

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 6000

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 560729.9404296875
YMin: 52594.6005859375
XMax: 2240491.3022460938
YMax: 1342431.3354492188
Spatial Reference: 2927  (2927)

Drawing Info:

Renderer:
Class Breaks Renderer:
Field: EARTHQUAKE_DEPTH_KM
Min. Value: 0.002
ClassBreakInfos:
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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• EARTHQUAKE_RELOCATION_ID ( type: esriFieldTypeInteger, alias: Earthquake Relocation ID )
• DATE_TIME_UTC ( type: esriFieldTypeString, alias: Time (Coordinated Universal Time), length: 25 )
• DATE_TIME_PST ( type: esriFieldTypeString, alias: Time (Local), length: 25 )
• EARTHQUAKE_DEPTH_KM ( type: esriFieldTypeSingle, alias: Earthquake Depth (km) )
• LATITUDE_DECIMAL_DEGREES ( type: esriFieldTypeDouble, alias: Latitude (Decimal Degrees) )
• LONGITUDE_DECIMAL_DEGREES ( type: esriFieldTypeDouble, alias: Longitude (Decimal Degrees) )
• COUNTY_NAME ( type: esriFieldTypeString, alias: County Name, length: 20 )
• TOWNSHIP ( type: esriFieldTypeString, alias: Township, length: 10 )
• RANGE ( type: esriFieldTypeString, alias: Range, length: 10 )
• SECTION ( type: esriFieldTypeString, alias: Section, length: 10 )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )
• EARTHQUAKE_MAGNITUDE ( type: esriFieldTypeSingle, alias: Earthquake Magnitude )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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