Earthquake Risk From Address (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>[].slug</td><td>string</td><td>Unique readable string identifier for the property</td><td>123-Main-St-Apt-1B-San-Francisco-CA-94132</td> </tr> <tr><td>[].address</td><td>string</td><td>Either a single URL-safe string ("slug") identifying the address, or just a building number, street name, and optionally unit number (if not a slug the payload must also include other identifiers)</td><td>123 Main St</td> </tr> <tr><td>[].unit</td><td>string</td><td>Unit number for the property, if needed and not already specified in the address string</td><td>Apt 1B</td> </tr> <tr><td>[].city</td><td>string</td><td>City in which the property is located</td><td>San Francisco</td> </tr> <tr><td>[].state</td><td>string</td><td>2-letter acronym of the US state in which the property is located</td><td>CA</td> </tr> <tr><td>[].zipcode</td><td>string</td><td>5-digit US zipcode in which the property is located</td><td>94105</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>

[
  {
    "slug": "123-Main-St-Apt-1B-San-Francisco-CA-94132",
    "address": "123 Main St",
    "unit": "Apt 1B",
    "city": "San Francisco",
    "state": "CA",
    "zipcode": "94105"
  }
]

[
  {
    "property/block_hazard_earthquake": {
      "result": {
        "max_percent_g": 0.45,
        "county_percentile": 75,
        "nation_percentile": 60
      }
    },
    "address_info": {
      "address_full": "123 Main St San Francisco CA 94132",
      "slug": "123-Main-St-Apt-1B-San-Francisco-CA-94132",
      "address": "123 Main St",
      "unit": "Apt 1B",
      "city": "San Francisco",
      "state": "CA",
      "zipcode": "94132",
      "zipcode_plus4": "1234",
      "block_id": "060750313013007",
      "blockgroup_id": "060750201004",
      "county_fips": "06075",
      "metrodiv": "41860",
      "msa": "41860",
      "geo_precision": "rooftop",
      "lat": 37.789,
      "lng": -122.401,
      "status": {
        "match": true,
        "details": [
          "Address fully verified"
        ],
        "requested_item": {
          "zipcode": "94132",
          "address": "123+Main+St"
        },
        "changes": [
          "State added or changed"
        ]
      }
    }
  }
]