Earthquake Risk (Batch)

This endpoint provides information on earthquake risk from the US Geological Survey for a specific block. It returns peak horizontal ground acceleration values with a 10% probability of being exceeded in the next 50 years. Percentile values within the county and entire US are provided for context.

Source: USGS Data, HouseCanary Analysis

Pricing Tier: Basic

Updated: Annually

Request Body Fields

<table><tr><th>Field</th><th>Type</th><th>Description</th><th>Example</th></tr> <tr><td>[]</td><td>object</td><td></td><td></td> </tr> <tr><td>[].block_id</td><td>string</td><td>15-digit US-census block ID</td><td>360050001001000</td> </tr> </table>

Response

<table><tr><th>Field</th><th>Type</th><th>Description</th><th>Example</th></tr> <tr><td>max_percent_g</td><td>number</td><td>Peak horizontal ground acceleration with a 10% probability of being exceeded in the next 50 years. Values are given in %g, where g is acceleration due to gravity, or 9.8 meters/second^2.</td><td>0.45</td> </tr> <tr><td>county_percentile</td><td>integer</td><td>Where the max_percent_g falls within the county. Percentile values range from 0 to 100, with higher values indicating greater risk.</td><td>75</td> </tr> <tr><td>nation_percentile</td><td>integer</td><td>Where the max_percent_g falls within the USA. Percentile values range from 0 to 100, with higher values indicating greater risk.</td><td>60</td> </tr> </table>

[
  {
    "block_id": "360050001001000"
  }
]

[
  {
    "block/hazard_earthquake": {
      "result": {
        "max_percent_g": 0.45,
        "county_percentile": 75,
        "nation_percentile": 60
      }
    },
    "block_info": {
      "block_id": "360050001001000"
    }
  }
]