Quaternary Fault and Fold Database of the United States

This website contains information on faults and associated folds in the United States that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). Maps of these geologic structures are linked to detailed descriptions and references. Read our Factsheet for more information.

Data and Resources

Field Value
Ecological Region "\"Terrestrial\""
Organization "\"USGS\""
spatial {"type": "MultiPolygon", "coordinates": [[[[144.70245, 13.234996], [144.69302, 13.238884], [144.68054, 13.246948], [144.67026, 13.2569475], [144.64777, 13.288339], [144.63675, 13.340056], [144.6363, 13.342126], [144.63416, 13.3522215], [144.64499, 13.398895], [144.65524, 13.427776], [144.83746, 13.630132], [144.85469, 13.6468], [144.87605, 13.65229], [144.94955, 13.597219], [144.95331, 13.587499], [144.9484, 13.575221], [144.94768, 13.573444], [144.94662, 13.570831], [144.7519, 13.266946], [144.74023, 13.251664], [144.7294, 13.242214], [144.72052, 13.237498], [144.70941, 13.234996], [144.70245, 13.234996]], [[-156.90726, 20.737774], [-156.96613, 20.743462], [-156.99135, 20.783646], [-156.99306, 20.786383], [-156.99315, 20.78653], [-157.04527, 20.869606], [-157.05597, 20.886662], [-157.05557, 20.910826], [-157.04642, 20.919016], [-157.03308, 20.923048], [-157.01419, 20.925829], [-157.00621, 20.926315], [-157.00061, 20.926657], [-156.9242, 20.927845], [-156.90503, 20.920826], [-156.89032, 20.913057], [-156.87723, 20.903877], [-156.82309, 20.85444], [-156.81226, 20.843605], [-156.80501, 20.82638], [-156.80606, 20.821592], [-156.80737, 20.815687], [-156.8175, 20.80027], [-156.8331, 20.779444], [-156.83948, 20.77111], [-156.84726, 20.764433], [-156.892, 20.744164], [-156.90726, 20.737774]], [[-156.37418, 20.580824], [-156.38837, 20.582218], [-156.41417, 20.58743], [-156.42001, 20.588608], [-156.42593, 20.594355], [-156.44063, 20.608618], [-156.44405, 20.611937], [-156.64056, 20.829718], [-156.64348, 20.833147], [-156.68625, 20.883324], [-156.68863, 20.886112], [-156.7016, 20.9261], [-156.69727, 20.947493], [-156.69223, 20.956934], [-156.66144, 21.013607], [-156.59709, 21.051378], [-156.23138, 20.935486], [-156.02724, 20.811241], [-156.00226, 20.794987], [-155.99335, 20.782495], [-155.98724, 20.764297], [-155.98807, 20.751112], [-155.99472, 20.732222], [-156.00171, 20.717209], [-156.00809, 20.708883], [-156.04532, 20.673883], [-156.0617, 20.661102], [-156.13982, 20.629576], [-156.37418, 20.580824]], [[-156.8675, 21.045826], [-156.875, 21.046097], [-157.2974, 21.090134], [-157.30112, 21.094412], [-157.30405, 21.097775], [-157.29417, 21.143612], [-157.28699, 21.154448], [-157.24414, 21.19861], [-157.18863, 21.209717], [-156.7914, 21.176651], [-156.75046, 21.172771], [-156.70515, 21.155544], [-156.7147, 21.139435], [-156.75029, 21.090826], [-156.76213, 21.080828], [-156.8386, 21.052774], [-156.84946, 21.049166], [-156.8675, 21.045826]], [[-157.81308, 21.258883], [-158.10057, 21.294441], [-158.10136, 21.295162], [-158.1082, 21.301382], [-158.2352, 21.478537], [-158.26996, 21.568588], [-158.2731, 21.576767], [-158.2735, 21.57777], [-158.26477, 21.586655], [-158.01186, 21.69235], [-157.97192, 21.699432], [-157.95776, 21.692774], [-157.94391, 21.684439], [-157.9289, 21.670544], [-157.92255, 21.662489], [-157.73032, 21.411667], [-157.66559, 21.32416], [-157.66998, 21.3185], [-157.70865, 21.268602], [-157.81308, 21.258883]], [[-160.20447, 21.783602], [-160.23169, 21.800549], [-160.24254, 21.808641], [-160.2464, 21.811527], [-160.24652, 21.813972], [-160.24686, 21.82089], [-160.24792, 21.843325], [-160.2272, 21.891386], [-160.19754, 21.919987], [-160.1828, 21.934153], [-160.08624, 22.017359], [-160.0614, 22.013884], [-160.04654, 21.998053], [-160.05, 21.985535], [-160.05199, 21.978342], [-160.06775, 21.921417], [-160.07114, 21.90916], [-160.19977, 21.783602], [-160.20447, 21.783602]], [[-159.45142, 21.869991], [-159.56027, 21.900276], [-159.64995, 21.93546], [-159.70752, 21.958048], [-159.74852, 21.976591], [-159.7542, 21.979162], [-159.77083, 22.00121], [-159.7754, 22.007269], [-159.78668, 22.022219], [-159.78697, 22.023321], [-159.79031, 22.03597], [-159.78949, 22.050829], [-159.78531, 22.061386], [-159.73032, 22.13722], [-159.71461, 22.154167], [-159.58264, 22.226248], [-159.55266, 22.236103], [-159.40167, 22.239155], [-159.34958, 22.219994], [-159.32748, 22.20165], [-159.3175, 22.190275], [-159.29182, 22.141378], [-159.28894, 22.126942], [-159.33102, 21.973143], [-159.3331, 21.965546], [-159.34059, 21.95818], [-159.3498, 21.949135], [-159.37766, 21.921751], [-159.3786, 21.920824], [-159.38287, 21.917759], [-159.43362, 21.881386], [-159.44969, 21.8711], [-159.45142, 21.869991]], [[-81.08806, 25.115555], [-97.39376, 25.837378], [-97.40597, 25.83819], [-97.42544, 25.840723], [-98.19702, 26.056067], [-98.24878, 26.073015], [-117.122475, 32.53436], [-120.44903, 34.455692], [-120.60582, 34.558598], [-120.62596, 34.584435], [-121.86762, 36.315334], [-123.70152, 38.93041], [-124.331184, 40.272453], [-124.375824, 40.4477], [-124.52443, 42.8661], [-124.7143, 48.397068], [-122.757805, 49.00235], [-95.15337, 49.38435], [-94.95753, 49.370174], [-69.178406, 47.456646], [-68.28411, 47.360416], [-68.23462, 47.35506], [-68.23105, 47.354355], [-68.15517, 47.325447], [-67.955696, 47.199566], [-67.79055, 47.06794], [-66.983055, 44.86638], [-66.97083, 44.82791], [-80.397514, 25.186655], [-81.08806, 25.115555]], [[-163.33055, 54.80818], [-163.3529, 54.809723], [-163.35295, 54.809788], [-163.36917, 54.835724], [-163.37112, 54.83886], [-163.38303, 54.857883], [-163.38347, 54.8586], [-166.19736, 61.590267], [-168.12984, 65.64867], [-168.13196, 65.66296], [-166.82362, 68.34874], [-166.23242, 68.87234], [-166.20749, 68.88346], [-161.94223, 70.30721], [-159.6286, 70.806366], [-159.5228, 70.82805], [-156.69833, 71.33832], [-156.59673, 71.35143], [-143.21555, 70.11026], [-142.8882, 70.07541], [-141.0027, 69.642365], [-133.65953, 58.582836], [-133.6783, 58.55539], [-133.6865, 58.54457], [-134.14925, 58.20048], [-163.33055, 54.80818]]]]}
Groups
  • AmeriGEOSS
  • Global Provider
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • edx
  • energy
  • energy-data-exchange
  • faults
  • fold
  • folds
  • geo
  • geology
  • geoss
  • global
  • structural
author Matthew Dieterich
isopen False
license_id notspecified
license_title License not specified
metadata_created 2025-11-25T22:24:12.330156
metadata_modified 2025-11-25T22:24:12.330161
notes This website contains information on faults and associated folds in the United States that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). Maps of these geologic structures are linked to detailed descriptions and references. Read our Factsheet for more information.
num_resources 1
num_tags 14
title Quaternary Fault and Fold Database of the United States