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Fetches all earthquake events that occurred during a specific month and year. This endpoint is ideal for historical analysis and monthly reports.

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Endpoint

Method: GET
Path: /v1/earthquakes/month
Authentication: Not required

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Parameters

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year
integer
required
Four-digit year (YYYY format).Validation:
  • Must be a valid number
  • Must be between 1900 and current year + 1
  • Returns 400 error if missing or invalid: “Both ‘year’ and ‘month’ parameters are required and must be numbers. Example: ?year=2025&month=03”
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month
integer
required
Month number from 1 to 12 (1 = January, 12 = December).Validation:
  • Must be a valid number
  • Must be between 1 and 12
  • Returns 400 error if invalid: “The ‘month’ parameter must be between 1 and 12. Example: ?month=07 for July”
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page
integer
default:"1"
Page number for pagination. Must be a positive integer greater than 0.Validation:
  • Must be > 0
  • Returns 400 error if invalid
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limit
integer
default:"50"
Number of results per page. Must be a positive integer greater than 0.Validation:
  • Must be > 0
  • Returns 400 error if invalid
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sort
string
default:"-time"
Sort order for results. Prefix with - for descending order.Allowed values:
  • time or -time (default: descending)
  • magnitude or -magnitude
  • depth or -depth
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fields
string
Comma-separated list of fields to include in response.Allowed values:
  • time
  • magnitude
  • depth
  • place
  • coordinates

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Request Example

curl "https://api.terraquakeapi.com/v1/earthquakes/month?year=2025&month=9&page=1&limit=50"

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Response

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success
boolean
Indicates if the request was successful
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code
integer
HTTP status code (200 for success)
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status
string
HTTP status message (“OK” for success)
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message
string
Human-readable message. Format: “Earthquake events for -”
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payload
array
Array of GeoJSON Feature objects containing earthquake data
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meta
object
Request metadata containing method, path, and timestamp
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totalEarthquakes
integer
Total count of earthquakes in the specified month
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pagination
object
Pagination details with page, totalPages, limit, and hasMore

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Response Example

{
  "success": true,
  "code": 200,
  "status": "OK",
  "message": "Earthquake events for 2025-09",
  "payload": [
    {
      "type": "Feature",
      "properties": {
        "eventId": 44278572,
        "originId": 140102761,
        "time": "2025-09-26T19:33:46.440000",
        "author": "SURVEY-INGV",
        "magType": "ML",
        "mag": 1,
        "magAuthor": "--",
        "type": "earthquake",
        "place": "Costa Calabra sud-orientale (Reggio di Calabria)",
        "version": 100,
        "geojson_creationTime": "2025-11-06T00:52:30"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [16.2387, 37.9982, 10.5]
      }
    }
  ],
  "meta": {
    "method": "GET",
    "path": "/v1/earthquakes/month?year=2025&month=9&limit=50",
    "timestamp": "2025-11-06T01:00:00.000Z"
  },
  "totalEarthquakes": 1284,
  "pagination": {
    "page": 1,
    "totalPages": 26,
    "limit": 50,
    "hasMore": true
  }
}

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Error Responses

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Missing Required Parameters

{
  "success": false,
  "code": 400,
  "status": "Bad Request",
  "message": "Both 'year' and 'month' parameters are required and must be numbers. Example: ?year=2025&month=03"
}

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Invalid Month

{
  "success": false,
  "code": 400,
  "status": "Bad Request",
  "message": "The 'month' parameter must be between 1 and 12. Example: ?month=07 for July"
}

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Invalid Year

{
  "success": false,
  "code": 400,
  "status": "Bad Request",
  "message": "The 'year' parameter must be between 1900 and 2026"
}

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Invalid Pagination

{
  "success": false,
  "code": 400,
  "status": "Bad Request",
  "message": "The 'page' parameter must be a positive integer greater than 0. Example: ?page=2"
}

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Implementation Details

  • Date Range Calculation: Start date is first day of month ({year}-{month}-01), end date is first day of next month
  • Month Padding: Month is zero-padded to 2 digits (e.g., March = “03”)
  • Sorting: Default sort is by time (most recent first: -time)
  • Pagination: Manual pagination applied after fetching all events from INGV
  • Data Source: INGV API with orderby=time and format=geojson

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Use Cases

  • Monthly seismic activity reports
  • Historical analysis and comparisons
  • Year-over-year trend analysis
  • Research and academic studies

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