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U.S. Earthquake Faults is an iPhoneŽ/iPad app that shows your current location or a location you specify, the closest faults in the continental United States and approximate distances to those faults. There are 5 main screens (see below):
U.S. Earthquake Faults shows the vast majority of faults the USGS classifies as "Historic" (active in the last 150 years) and "Holocene to Latest Pleistocene" (active in the last 15,000 years). That includes over 300 faults and over 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) by the USGS. All fault lines and distances are approximations. For more information, go the the USGS web site (here). The current version (1.18) is available on the App Store (here) for $1.99. It requires IOS 12.0 or later and an active WiFi or cellular services (preferably both) that allow secure connections to the Internet. Some public WiFi networks do not allow secure connections, in which case, you can turn off WiFi and use a cellular network (if you have one). The current version (1.18) works with iPhone SE, 5s, 6-8, X, 11 and iPad mini 2-4, Air 1-2, 5th Gen, 9.7" Pro, 10.5" Pro and 12.9" Pro.
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FAULT MAPS |
Shows faults near the current/found location or faults in the United States. Shows distances to the 4 closest faults and allows zooming into them (like San Andreas below). Tapping a fault with show its name. |
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Current Location |
United States |
Zoom into San Andreas |
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DISTANCES, FIND, INFO & SETTINGS |
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Distances shows distances to closest 50 (iPhone) or 70 (iPad) faults.
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Distances |
Find |
Info |
Settings |
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DRIVING OVER FAULTS |
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If you live near faults included in this app, you can locate faults by driving over them.
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Approach fault |
Drive up to fault |
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SUPPORT |
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Comments and questions are welcome. Contact us at dpasadis@icloud.com. You will get a response.
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Copyright 2020 |