Where this answer comes from.
Each of these has its own page naming the office that publishes it, how often it updates, and what it cannot answer. Rebuilt from the ParcelOps source directory on September 9, 2026.
USGS Earthquake History
Worldwide published earthquake events near a property, plus recent feeds and event details.
FEMA National Risk Index
County and census-tract screening across 18 natural hazards, vulnerability, and resilience.
Where this stops.
The part a search result will not tell you, and the part worth reading before this answer goes into a decision.
- Recorded history is not seismic hazard. Design level ground motion comes from a hazard model built on faults and attenuation, not from a list of what has happened nearby.
- Older events carry wide location and magnitude uncertainty, and small events are only detected where the instrument network is dense.
- Events induced by injection or extraction appear in the catalog like any other event. Nothing in the record labels them as induced.
Questions people ask alongside this one.
What census tract is this address in?
Federal program designations are published by census tract, not by address. How to resolve an address to its state, county, tract, and block codes, and why the vintage matters.
Is this property in a flood zone?
A flood zone answer is a letter read off a specific FEMA map panel with an effective date. What each zone means, and why outside a zone is not the same as safe.
Are there wetlands on this property?
The national wetlands inventory is a map layer compiled from imagery, not a jurisdictional determination. What the classification codes mean and where the layer stops.
Is this property in a wildfire risk area?
There is no national wildfire zone the way there is a flood zone. What the modeled risk metrics at a point actually describe, and what decides one house.
Is there a dam near this property?
Listed dams near a point with hazard class and condition rating. Hazard class describes consequence, not likelihood, and proximity to a dam is not inundation risk.
What disasters have been declared in this county?
Federal disaster declarations are made at county level. The declaration history, the flood insurance claim pattern, and what a declaration does and does not say about one address.
The lanes this question belongs to.
A lane page lists every source that kind of work reads, not only the ones behind this question, and states where the whole lane stops.
Run it on a property you already know.
The free plan includes 50 tool calls for the life of the account. They never expire and never refill, and there is no credit card. Ask this question about an address whose answer you can check.