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ArcGIS JavaScript
ArcGIS Online Map Viewer
ArcGIS Earth
Service Description: This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustrate seismic hazards in California. For each ground motion parameter, maps at two different hazard levels were presented: one with a 2% probability of being exceeded in 50 years (equivalent to 2,475-year recurrence interval) and the other with 10% probability of being exceeded in 50 years (equivalent to 475-year recurrence interval). The ArcGIS Online interface allows users to select any two ground motion hazard maps to compare side by side. Ground motion parameters were calculated using the 2023 update of the U.S. Geological Survey National Seismic Hazard Model. See the “Scientific Background” on MS48 webpage for detailed information.
Due to software limitations, symbology cannot be added to this service. To match the symbology used in the MS48 Ground Motion application, use the following configuration: - Esri Color Ramp: Magma
- Minimum: 4.41 g
- Maximum: 0.032 g
- Gamma: 1
CGS/MS48_GroundMotion_PGA_2pc50
Description:
Single Fused Map Cache: false
Extent:
XMin: -1.3849234917776056E7
YMin: 3833592.1169994827
XMax: -1.2704934917776056E7
YMax: 5162392.116999483
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Initial Extent:
XMin: -1.3849234917776056E7
YMin: 3833592.1169994827
XMax: -1.2704934917776056E7
YMax: 5162392.116999483
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Full Extent:
XMin: -1.3849234917776056E7
YMin: 3833592.1169994827
XMax: -1.2704934917776056E7
YMax: 5162392.116999483
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Pixel Size X: 100.0
Pixel Size Y: 100.0
Band Count: 1
Pixel Type: F32
RasterFunction Infos: {"rasterFunctionInfos": [{
"name": "None",
"description": "",
"help": ""
}]}
Mensuration Capabilities: Basic
Has Histograms: true
Has Colormap: false
Has Multi Dimensions : false
Rendering Rule:
Min Scale: 0
Max Scale: 0
Copyright Text: Rui Chen, 2025, Map Sheet 48: Earthquake Shaking Potential for California, California Geological Survey, California Department of Conservation.
Service Data Type: esriImageServiceDataTypeGeneric
Min Values: 0.07136604189872742
Max Values: 1.7808856964111328
Mean Values: 0.5934648685852594
Standard Deviation Values: 0.30791945072185717
Object ID Field:
Fields:
None
Default Mosaic Method: Center
Allowed Mosaic Methods:
SortField:
SortValue: null
Mosaic Operator: First
Default Compression Quality: 75
Default Resampling Method: Bilinear
Max Record Count: null
Max Image Height: 4100
Max Image Width: 15000
Max Download Image Count: null
Max Mosaic Image Count: null
Allow Raster Function: true
Allow Copy: true
Allow Analysis: true
Allow Compute TiePoints: false
Supports Statistics: false
Supports Advanced Queries: false
Use StandardizedQueries: true
Raster Type Infos:
Name: Raster Dataset
Description: Supports all ArcGIS Raster Datasets
Help:
Has Raster Attribute Table: false
Edit Fields Info: null
Ownership Based AccessControl For Rasters: null
Child Resources:
Info
Histograms
Statistics
Key Properties
Legend
Raster Function Infos
Supported Operations:
Export Image
Identify
Measure
Compute Histograms
Compute Statistics Histograms
Get Samples
Compute Class Statistics
Query Boundary
Compute Pixel Location
Compute Angles
Validate
Project