Layers:

Layer: LavaFlowHazardZones (0)


Name: LavaFlowHazardZones

Display Field: DESCRIPTION

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The boundaries and classification of lava flow hazard zones on Hawaii Island were first mapped by the US Geological Survey in 1974. This classification scheme divides the island into 18 major zones that are ranked from 1 through 9 based on the probability of coverage by lava flows. The  risk levels are based primarily on the location and frequency of historic eruptions (those for which there are written records or that are known from the oral traditions of the Hawaiians) and the geologic mapping and scientific dating of the old flows from prehistoric eruptions.


Much of the USGS work was based on a paper called Geologic Map of the Island of Hawaii by Edward Wolfe and Jean Morris.



Copyright Text: USGS, Hawaii State GIS Program

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 1000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -17372709.9718
YMin: 2144424.0549
XMax: -17232996.3508
YMax: 2304863.1622
Spatial Reference: 102100 (3857)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field: SEVERITYCODE

Fields:
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• SEVERITYCODE (type: esriFieldTypeSmallInteger, alias: SEVERITYCODE, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SEVERITY (type: esriFieldTypeString, alias: SEVERITY, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true)
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• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: 1
Name: Extremely High Hazard
Domains:

Templates:

Name: Extremely High Hazard
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SEVERITYCODE: 1

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ID: 2
Name: Very High Hazard
Domains:

Templates:

Name: Very High Hazard
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SEVERITYCODE: 2

---

ID: 3
Name: High Hazard
Domains:

Templates:

Name: High Hazard
Description:
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Prototype:

Attributes:

• SEVERITYCODE: 3

---

ID: 4
Name: Medium-High Hazard
Domains:

Templates:

Name: Medium-High hazard
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SEVERITYCODE: 4

---

ID: 5
Name: Medium Hazard
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Name: Medium Hazard
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Prototype:

Attributes:

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ID: 6
Name: Medium-Low Hazard
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Prototype:

Attributes:

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ID: 7
Name: Low Hazard
Domains:

Templates:

Name: Low Hazard
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SEVERITYCODE: 7

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ID: 8
Name: Very Low Hazard
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Name: Very Low Hazard
Description:
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Prototype:

Attributes:

• SEVERITYCODE: 8

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ID: 9
Name: Extremely Low Hazard
Domains:

Templates:

Name: Extremely Low Hazard
Description:
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Prototype:

Attributes:

• SEVERITYCODE: 9

---


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/24/2023 7:55:41 PM

Schema Last Edit Date: 1/24/2023 7:55:41 PM

Data Last Edit Date: 1/24/2023 7:55:41 PM