SourceFinch Verified · Disasters & emergency management

USGS magnitude 4.5+ seismic events — past week

Monitor USGS magnitude 4.5 and larger seismic events worldwide in the past week, with preferred event identifiers, magnitude, publisher timestamps, review status and coordinates. Retain evidence of later publisher revisions.

Monitor this sourceAPI, CLI, SDK and MCP

At a glance

Jurisdiction
United States (federal)
Publisher updates
USGS summary feed updated every minute; monitor hourly
SourceFinch checks
Hourly by default
Records per run
174 in the latest run
Record key
id
Acquired from
Publisher's public API: https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/4.5_week.geojson
Recipe
v1.0.0, approved October 12, 2026
Verified since
October 12, 2026
Last green run
October 12, 2026

What the data contains

Reads the complete USGS 4.5_week.geojson rolling summary feed for the past seven days (typically 100 to 250 events worldwide). Each feature becomes a record keyed by the publisher preferred event identifier. Magnitudes, locations, review status and timestamps can change as USGS revises its estimates. An event leaving this rolling window does not prove deletion, resolution or that the hazard has ended. Preferred identifiers can also change when events are merged; this recipe does not resolve aliases across identifiers. This recipe retains all feed event types. It does not infer impacts on infrastructure, resolve event aliases, or issue safety advice. A week without a magnitude 4.5+ event is very unlikely, but an empty feed is still a possible publisher state; inspect source health before interpreting an empty result. SourceFinch is independent of USGS.

Fields and types

Every record has these fields. The key field id identifies a record across runs, so changes are reported field by field.

FieldTypeDescription
idkeystringUSGS preferred event identifier. Merged events may receive a different preferred identifier.
titlestring, nullablePublisher title describing magnitude and location.
magnitudenumber, nullablePublisher magnitude estimate; nullable and subject to revision.
placestring, nullablePublisher description of the event location.
event_time_msintegerEvent origin time as milliseconds since the Unix epoch in UTC.
updated_time_msintegerPublisher revision timestamp as milliseconds since the Unix epoch in UTC.
statusstring, nullablePublisher review status, such as automatic or reviewed.
event_typestring, nullablePublisher event type; the feed may include non-earthquake seismic events.
longitudenumber, nullableLongitude in degrees from the publisher point geometry; nullable.
latitudenumber, nullableLatitude in degrees from the publisher point geometry; nullable.
depth_kmnumber, nullablePublisher depth estimate in kilometres; nullable and subject to revision.
urlurlUSGS detail page for the event.

Sample output

The first 5 of 174 records from SourceFinch's own run on October 12, 2026, exactly as delivered.

FieldRecord 1Record 2Record 3Record 4Record 5
idus6000u1vfus6000u1uvus6000u1utus6000u1uqus6000u1sn
titleM 4.8 - 25 km W of Río Grande, PanamaM 4.6 - Mid-Indian RidgeM 4.7 - Mid-Indian RidgeM 4.8 - 23 km SW of San Antonio, ChileM 4.9 - 283 km SSW of Severo-Kuril’sk, Russia
magnitude4.84.64.74.84.9
place25 km W of Río Grande, PanamaMid-Indian RidgeMid-Indian Ridge23 km SW of San Antonio, Chile283 km SSW of Severo-Kuril’sk, Russia
event_time_ms17918355252361791829819138179182966187517918290388521791819873749
updated_time_ms17918375280401791831510040179183110404017918393858391791821664040
statusreviewedreviewedreviewedreviewedreviewed
event_typeearthquakeearthquakeearthquakeearthquakeearthquake
longitude-81.56776767.1096-71.8113154.8502
latitude7.7181-16.5382-16.294-33.72148.2626
depth_km10101033.62735
urlhttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u1vfhttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u1uvhttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u1uthttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u1uqhttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u1sn
Sample as JSON
[
  {
    "id": "us6000u1vf",
    "url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000u1vf",
    "place": "25 km W of Río Grande, Panama",
    "title": "M 4.8 - 25 km W of Río Grande, Panama",
    "status": "reviewed",
    "depth_km": 10,
    "latitude": 7.7181,
    "longitude": -81.5677,
    "magnitude": 4.8,
    "event_type": "earthquake",
    "event_time_ms": 1791835525236,
    "updated_time_ms": 1791837528040
  },
  {
    "id": "us6000u1uv",
    "url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000u1uv",
    "place": "Mid-Indian Ridge",
    "title": "M 4.6 - Mid-Indian Ridge",
    "status": "reviewed",
    "depth_km": 10,
    "latitude": -16.5382,
    "longitude": 67,
    "magnitude": 4.6,
    "event_type": "earthquake",
    "event_time_ms": 1791829819138,
    "updated_time_ms": 1791831510040
  },
  {
    "id": "us6000u1ut",
    "url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000u1ut",
    "place": "Mid-Indian Ridge",
    "title": "M 4.7 - Mid-Indian Ridge",
    "status": "reviewed",
    "depth_km": 10,
    "latitude": -16.294,
    "longitude": 67.1096,
    "magnitude": 4.7,
    "event_type": "earthquake",
    "event_time_ms": 1791829661875,
    "updated_time_ms": 1791831104040
  },
  {
    "id": "us6000u1uq",
    "url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000u1uq",
    "place": "23 km SW of San Antonio, Chile",
    "title": "M 4.8 - 23 km SW of San Antonio, Chile",
    "status": "reviewed",
    "depth_km": 33.627,
    "latitude": -33.721,
    "longitude": -71.8113,
    "magnitude": 4.8,
    "event_type": "earthquake",
    "event_time_ms": 1791829038852,
    "updated_time_ms": 1791839385839
  },
  {
    "id": "us6000u1sn",
    "url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000u1sn",
    "place": "283 km SSW of Severo-Kuril’sk, Russia",
    "title": "M 4.9 - 283 km SSW of Severo-Kuril’sk, Russia",
    "status": "reviewed",
    "depth_km": 35,
    "latitude": 48.2626,
    "longitude": 154.8502,
    "magnitude": 4.9,
    "event_type": "earthquake",
    "event_time_ms": 1791819873749,
    "updated_time_ms": 1791821664040
  }
]

Evidence behind every value

  • Each run keeps the publisher's exact response, hashed with SHA-256. This sample came from a response with hash bfaa371de9194f9dbd1ddd18eb1e4c9177c9c0b3e990a28996b52db06d70c00c.
  • Every value records where it came from in that response: a JSON Pointer into the retained capture.
  • Each run gets a signed manifest (Ed25519) timestamped by an RFC 3161 authority: this run's manifest hash is d807b142f861bedfb87d70ae8bc827dd0558dc4821d5e5d2c4d991e635be062b, timestamped October 12, 2026.
  • The compliance state at capture is recorded with the evidence: robots.txt hash and verdict, AI-preference signals, crawler identity and the usage rights below.
  • Download any run as an evidence bundle (WACZ) and check it offline, without trusting SourceFinch: sourcefinch verify-bundle run.wacz.

Terms posture and usage rights

Terms
Automated access permitted · publisher's terms
robots.txt
None published (HTTP 404); access allowed under RFC 9309
AI-preference signals
None observed at review
Public record
Yes. USGS public-domain data policy for USGS-authored data.
Reviewed
October 12, 2026; next review April 12, 2027
Licence basis
U.S. government work (public domain)
Commercial use
Allowed
Redistribution
Allowed
Attribution
Required (text below)

USGS-authored data and information are in the U.S. public domain. Credit the U.S. Geological Survey. Third-party copyrighted materials, personnel likenesses and trademarked identifiers have separate restrictions; this recipe extracts seismic data only and excludes logos, images and multimedia.

U.S. Geological Survey. This product is independent of and is not endorsed by USGS.

Usage rights travel with every record SourceFinch delivers (API, exports, webhooks and evidence bundles). They are our documented understanding of the publisher's stated terms, not legal advice.

Reliability

Runs, last 30 days
1
Green
100%
Failed
0
Median run time
0.6 s
Latest run
success, October 12, 2026

Measured on completed runs of this recipe version across SourceFinch, anonymized, within a rolling 30-day window. First successful observation: October 12, 2026. A new recipe has only the history collected since that date; this is not a 30-day uptime guarantee.

Use it

Every surface creates the same monitor from this Verified recipe. Monitors keep record history, report field-level changes and deliver by webhook, export or email. You confirm you have the right to collect the source (rights: true).

Console

Open this recipe in the console: it preserves the reviewed URL, fields and record key. Review the latest captured sample, confirm source rights, and choose a schedule before creating your monitor.

Portable recipe

Copy into the console's Import or share a recipe panel to customize fields, types and schedules. This configuration contains no captured records or workspace IDs.

{
  "schema": "sourcefinch/source@1",
  "name": "USGS magnitude 4.5+ seismic events — past week",
  "url": "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/4.5_week.geojson",
  "recipe": {
    "mode": "http",
    "format": "json",
    "items": "features[*]",
    "fields": {
      "id": "id",
      "url": "properties.url",
      "place": "properties.place",
      "title": "properties.title",
      "status": "properties.status",
      "depth_km": "geometry.coordinates[2]",
      "latitude": "geometry.coordinates[1]",
      "longitude": "geometry.coordinates[0]",
      "magnitude": "properties.mag",
      "event_type": "properties.type",
      "event_time_ms": "properties.time",
      "updated_time_ms": "properties.updated"
    },
    "required": [
      "id",
      "event_time_ms",
      "updated_time_ms",
      "url"
    ],
    "types": {
      "depth_km": "number",
      "event_time_ms": "integer",
      "latitude": "number",
      "longitude": "number",
      "magnitude": "number",
      "updated_time_ms": "integer"
    }
  },
  "schedule": "hourly",
  "key_field": "id"
}

source.json

The request body used by the API, CLI and SDK examples.

{
  "name": "USGS magnitude 4.5+ seismic events — past week",
  "url": "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/4.5_week.geojson",
  "recipe": {
    "mode": "http",
    "format": "json",
    "items": "features[*]",
    "fields": {
      "id": "id",
      "url": "properties.url",
      "place": "properties.place",
      "title": "properties.title",
      "status": "properties.status",
      "depth_km": "geometry.coordinates[2]",
      "latitude": "geometry.coordinates[1]",
      "longitude": "geometry.coordinates[0]",
      "magnitude": "properties.mag",
      "event_type": "properties.type",
      "event_time_ms": "properties.time",
      "updated_time_ms": "properties.updated"
    },
    "required": [
      "id",
      "event_time_ms",
      "updated_time_ms",
      "url"
    ],
    "types": {
      "depth_km": "number",
      "latitude": "number",
      "longitude": "number",
      "magnitude": "number",
      "event_time_ms": "integer",
      "updated_time_ms": "integer"
    }
  },
  "key_field": "id",
  "schedule": "hourly",
  "rights": true,
  "catalog": {
    "slug": "usgs-earthquakes-m45-week",
    "version_id": "7a1098df-12da-408e-a71a-55db8c41eb35"
  }
}

REST API

Create an API key under Console → API keys. Reference: /docs/api.

# the Verified entry (fields, recipe, sample, terms) as JSON
curl https://sourcefinch.com/v1/catalog/usgs-earthquakes-m45-week -H "Authorization: Bearer $SOURCEFINCH_API_KEY"

# create the monitor from source.json (below)
curl -X POST https://sourcefinch.com/v1/sources \
  -H "Authorization: Bearer $SOURCEFINCH_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d @source.json

# then run it now (later runs follow the schedule)
curl -X POST https://sourcefinch.com/v1/sources/$SOURCE_ID/runs \
  -H "Authorization: Bearer $SOURCEFINCH_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)"

CLI

The sourcefinch CLI is not on npm yet; see /docs/cli.

sourcefinch login
sourcefinch catalog get usgs-earthquakes-m45-week --source-json > source.json
sourcefinch sources create --file source.json
sourcefinch runs create $SOURCE_ID --wait
sourcefinch records $SOURCE_ID

TypeScript SDK

The SDK is not on npm yet; see /docs/sdk.

import { SourceFinch } from "@sourcefinch/sdk";

const sf = new SourceFinch({ apiKey: process.env.SOURCEFINCH_API_KEY });
const entry = await sf.catalog.get("usgs-earthquakes-m45-week");
const source = await sf.sources.create({
  catalog: { slug: entry.slug, version_id: entry.recipe.version_id },
  name: entry.name.slice(0, 100),
  url: entry.acquisition_path.endpoint,
  recipe: entry.recipe.definition,
  key_field: entry.recipe.key_field,
  schedule: entry.recipe.schedule,
  rights: true, // you confirm you have the right to collect this source
});
const run = await sf.runs.wait((await sf.runs.create(source.id)).id);
console.log(run.status);

MCP

Remote MCP server with OAuth; see /docs/mcp.

claude mcp add --transport http sourcefinch https://sourcefinch.com/mcp

# then ask your agent:
"Use SourceFinch to monitor USGS magnitude 4.5+ seismic events — past week: get_catalog_source usgs-earthquakes-m45-week,
then create_source with its create_source_args (dry run first), then run_source."

Pricing

Each check is one run, whatever the number of records, and failed runs are free. On its default hourly schedule this source uses about 720 runs a month. It uses HTTP acquisition, so no browser runs are needed. See plans.

More from U.S. Geological Survey and in disasters & emergency management.

SourceFinch is independent and is not affiliated with or endorsed by U.S. Geological Survey. This page describes usgs magnitude 4.5+ seismic events — past week as SourceFinch acquires it.