Event Intensities Pane
Touchstone provides visibility into, and accessibility to, the data behind the AIR models, enabling you to view and export the underlying hazard data that Touchstone uses to calculate loss. Touchstone supports the viewing and exporting of local event intensities for the following models. To include a sub-perils, select the appropriate check box. If you do not want to include a sub-peril, clear the appropriate check box.
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Model |
Region |
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AIR Hurricane Model |
Gulf of Mexico (Offshore), United States, Canada, Hawaii |
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AIR Tropical Cyclone Model |
Caribbean, Central America, Mexico, Australia, India, Australia |
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AIR Extratropical Cyclone Model |
Europe |
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AIR Typhoon Model |
Japan, China, South Korea, Southeast Asia |
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AIR Earthquake Model |
Japan, United States, Mexico, Central America, Canada, Hawaii, Alaska, Caribbean, Australia, New Zealand, India, Southeast Asia, China, Europe, South America, Pan-European region, Southeast Europe (Albania, Macedonia, Serbia) |
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AIR Inland Flood |
Japan, United States, Southeast Europe (Albania, Macedonia, Serbia), Central Europe (Austria, Czech Republic, Germany, Poland, Switzerland) Note:
Local event intensities for previous model versions of the AIR Inland Flood Model for Central Europe are not supported for Germany. |
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AIR Coastal Flood Model for Great Britain |
Coastal Flood |
The Event Intensities feature is available only when Hazard Analysis is enabled in the license file.
Since obtaining event intensity data can be a database resource intensive process, especially for large exposures, allocate sufficient database space or apply an event set filter to select only the event intensities data that you want to obtain.
The Event Intensities pane includes the following fields that enable you to select the event intensity data to include in the Hazard Analysis. The Display Unit (g) stands for Gravity (m/s2).
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Field |
Description |
Can Be Included in a Template? |
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Event Set |
Specifies the event set for which you want to obtain event intensity data during the analysis. Note:
For U.S. AP event sets, Touchstone obtains event intensity data only for the continental United States. |
Yes |
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Disaggregation |
Specifies whether you want Touchstone to use disaggregation when obtaining event intensity data during the analysis. To enable disaggregation, select On. To disable disaggregation, select Off. When disaggregation is enabled, Touchstone distributes aggregate (coarse resolution) location data down to a finer resolution in locations where exposures are likely to be located based on lines of business represented in Touchstone . This process enables Touchstone to apply policy terms appropriately across an entire (distributed) region rather than applying them only across the geographic centroid of the region. Disaggregation generates hazard intensity data at a finer granularity for locations with poor quality data because it avoids analysis of aggregate exposures at a single-point location. Note:
Touchstone performs disaggregation automatically for certain models during Detailed Loss Analyses. It also performs disaggregation automatically for these models when obtaining event intensity data. For complete information about exposure disaggregation, see Exposure Disaggregation and Average Properties in Touchstone on the AIR Client Portal. |
Yes |
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Average Properties |
Specifies how Touchstone should apply average physical properties, such as soil type and land use/land cover data, when obtaining event intensity data during the analysis. Select Off, On, or Automatic. Note:
Touchstone applies Average Properties automatically for certain models during Detailed Loss Analyses. It also applies Average Properties automatically for these models when obtaining event intensity data. For more information about these options, see Average Properties. For complete information about the Average Properties feature, see Exposure Disaggregation and Average Properties in Touchstone on the AIR Client Portal. |
Yes |
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Event Set Filter |
Displays whether Touchstone should apply event set filters when obtaining event intensity data during the analysis. To apply an event set filter, click Applying an Event Set Filter |
No |
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Earthquake |
Specifies whether Touchstone should include earthquake-specific data when obtaining event intensity data during the analysis. Note:
This field is applicable only if the event set that you have chosen is relevant for the earthquake peril. |
Yes |
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Peak Ground Acceleration (Earthquake) |
Specifies whether Touchstone should include peak ground acceleration (PGA) when obtaining event intensity data during the analysis. PGA, one of the key measures of ground-shaking intensity, is the maximum value of the ground acceleration and is typically referred to as motion in the horizontal direction. The following table details the perils, display unit, and precision that Touchstone supports for peak ground acceleration for each relevant model/country:
Note:
PGA is calculated during the analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the earthquake peril. |
Yes |
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Spectral Acceleration 0.3 Seconds (Earthquake) |
Specifies whether Touchstone should include spectral acceleration (Sa) of 0.3 seconds or higher when obtaining event intensity data during the analysis. Spectral acceleration, one of the key measures of ground-shaking intensity, is the maximum response of a simple building, with a single natural frequency of vibration, to earthquake ground motions. Spectral acceleration approximates what a building experiences as modeled by a particle mass on a massless vertical rod having the same natural period of vibration as the building. The following table details the perils, display unit, and precision that Touchstone supports for peak ground acceleration for each relevant model/country:
Note:
Spectral acceleration is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the earthquake peril. |
Yes |
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Spectral Acceleration 1.0 Seconds (Earthquake) |
Specifies whether Touchstone should include spectral acceleration of 1.0 second or higher when obtaining event intensity data during the analysis. The following table details the perils, display unit, and precision that Touchstone supports for peak ground acceleration for each relevant model/country:
Note:
Spectral acceleration is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the earthquake peril. |
Yes |
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Tropical Cyclone |
Specifies whether Touchstone should include tropical cyclone-specific data when obtaining event intensity data during the analysis. Select the sub-perils to include. Note:
This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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Maximum Wind Speed (Tropical Cyclone) |
Specifies whether Touchstone should include the maximum wind speed when obtaining event intensity data during the analysis. In the context of local intensity, the maximum wind speed refers to the maximum wind speed sustained for one minute at 10 meters in height over model grid points (after site conditions, such as friction), measured in miles/hour. Note:
The maximum wind speed for Europe (M41) is the maximum 3-second gust. The following table details the perils, display unit, and precision that Touchstone supports for the maximum wind speed for each relevant model/country:
Note:
Maximum wind speed is calculated during the analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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Duration (Tropical Cyclone) |
Specifies whether Touchstone should include duration when obtaining event intensity data during the analysis. In the context of local intensity, duration refers to the length of time during which a structure is exposed to high winds. The asterisk (*) in the Country/Model column in the table identifies countries/models where duration refers to the amount of time that the location of interest is exposed to winds over 40 miles per hour, a threshold at which a location will likely incur structural damage. The following table summarizes the perils, display unit, and precision that Touchstone supports for duration for each relevant model/country:
Note:
Duration is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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Storm Surge Depth (Tropical Cyclone) |
Specifies whether Touchstone should include storm surge depth when obtaining event intensity data during the analysis. Storm surge depth is the level of the water above the ground at a specific point on land. The storm surge depth is the difference between the storm surge elevation (that is, the water height above normal sea level) and the land elevation. The following table details the perils, display unit, and precision that Touchstone supports for storm surge depth for each relevant country/model:
Note:
Storm surge depth is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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On Plain Precipitation Depth (Tropical Cyclone) |
Specifies whether Touchstone should include on plain precipitation depth when obtaining event intensity data during the analysis. On-plain flooding refers to rivers overflowing their banks and inundating properties on their floodplain. The following table details the perils, display unit, and precision that Touchstone supports for on plain precipitation depth for each relevant country/model:
Note:
Precipitation depth is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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Off Plain Precipitation Depth (Tropical Cyclone) |
Specifies whether Touchstone should include off plain precipitation depth when obtaining event intensity data during the analysis. Off plain flooding refers to local flooding by intense precipitation causing excess runoff, backing up of sewers, overflowing subterranean draining, etc. This type of flooding can happen to properties on or off the floodplain. The following table details the perils, display unit, and precision that Touchstone supports for on plain precipitation depth for each relevant country/model:
Note:
Precipitation depth is calculated during hazard analysis using user-provided location data in conjunction with model data. This field is applicable only if the event set that you have chosen is relevant for the tropical cyclone peril. |
Yes |
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Flood |
Specifies whether Touchstone should include On Plain or Off Plain precipitation-induced flood depth when obtaining event intensity data during the analysis.On-plain flooding refers to rivers overflowing their banks and inundating properties on their floodplain. Off-plain flooding refers to local flooding by intense precipitation causing excess runoff, backing up of sewers, overflowing subterranean draining, etc. This type of off-plain flooding can happen to properties on or off the floodplain. The following table details the perils, display unit, and precision that Touchstone supports for flood depth for each relevant country/model:
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You can create and edit Hazard Analysis templates to specify default settings for the analyses. You can specify any of the settings indicated in the preceding table to include these settings in the template that you are creating or editing.