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U.S. Earthquake Faults

By Innovative Solutions

This app is only available on the App Store for iOS devices.


U.S. Earthquake Faults shows your current location or a location you specify, faults in the continental United States and approximate distances to those faults. There are 5 screens:

1. Fault Maps:
Current or found location, names and distances to the closest 4 faults and a view of:
(a) closest 4 faults
(b) faults in the state
(c) faults in the region
(d) faults in the United States
You can zoom into the 4 closest faults.

2. Distances: Names, distances and color coding of the closest faults
3. Find: Find the nearest faults to a location you specify
4. App Info
5. App Settings

U.S. Earthquake Faults shows the vast majority of faults in the continental U.S. that the USGS classifies as "Historic" (active in last 150 years) and "Holocene to Latest Pleistocene" (active in last 15,000 years). That includes over 300 faults and 700 fault lines (some faults have multiple fault lines). It does not include all faults or faults classified as "Quaternary" (15,000 to 1,600,000 years).

All fault lines and distances are approximations. For more information, go to the app's web site ( or the USGS web site ( Thank you USGS!

Requires IOS 10.x and iPhone 5s/6/6+/6s/6s+/SE/7/7+ or iPad Air1-2/Mini2-4/Pro.

What's New in Version 1.05

Refined app settings.


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iPad Screenshot 1
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U.S. Earthquake Faults
View in iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Weather
  • Updated:
  • Version: 1.05
  • Size: 4.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

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