ANSS USA

ANSS Catalog

The ANSS (Advanced National Seismic System) composite catalog is a world-wide earthquake catalog that is created by merging the master earthquake catalogs from contributing ANSS institutions and then removing duplicate solutions for the same event.
As a composite catalog – comprised of contributions from member networks – the ANSS catalog is not uniform in its coverage. Many of the ANSS networks are funded by the USGS and began operations in the 1960s and 1970s.
The ANSS catalog contains a number of idiosyncrasies. For example, magnitudes for California earthquakes were not routinely reported until the 1940s. For global events, magnitudes are not routinely reported until the early 1960s.
The Advanced National Seismic System catalog is hosted by the Northern California Earthquake Data Center.

Areas covered by this page are;
Continental United States
Alaska
Puerto Rico and Virgin Islands
Hawaii
ANSSSearchBordersUSA
click on image for interactive version

.

2014

Click on Icon for event details.
To view larger map and the list, which has newest events at the top, click on text “View Larger Map” below map.

July 2014 summary

Continental United States: mag<1= 3339 , mag1= 2134 , mag2= 384 , mag3= 78 , mag4= 5 , mag5= 0 , mag6= 0 , total= 5940
Alaska: mag<1= 443 , mag1= 139 , mag2= 41 , mag3= 16 , mag4= 37 , mag5= 6 , mag6= 1 , total= 683
Puerto Rico: mag<1= 0 , mag1= 83 , mag2= 38 , mag3= 2 , mag4= 0 , mag5= 0 , mag6= 0 , total= 123
Hawaii: mag<1= 0 , mag1= 1 , mag2= 20 , mag3= 12 , mag4= 1 , mag5= 0 , mag6= 0 , total= 34
=6780 events on the map below

June 2014 summary

Continental United States: mag<1= 2824 , mag1= 1763 , mag2= 363 , mag3= 81 , mag4= 6 , mag5= 1 , mag6= 0 , total= 5038
Alaska: mag<1= 1203 , mag1= 185 , mag2= 134 , mag3= 72 , mag4= 46 , mag5= 14 , mag6= 1 , total= 1655
Puerto Rico: mag<1= 0 , mag1= 0 , mag2= 50 , mag3= 49 , mag4= 0 , mag5= 0 , mag6= 0 , total= 99
Hawaii: mag<1= 0 , mag1= 112 , mag2= 40 , mag3= 5 , mag4= 1 , mag5= 0 , mag6= 0 , total= 158
=6950 events on the map below

May 2014 summary

Continental United States: mag<1= 2906 , mag1= 1540 , mag2= 316 , mag3= 60 , mag4= 1 , mag5= 1 , mag6= 0 , total= 4824
Alaska: mag<1= 173 , mag1= 36 , mag2= 135 , mag3= 74 , mag4= 41 , mag5= 4 , mag6= 0 , total= 463
Puerto Rico: mag<1= 0 , mag1= 0 , mag2= 72 , mag3= 54 , mag4= 2 , mag5= 1 , mag6= 0 , total= 129
Hawaii: mag<1= 0 , mag1= 136 , mag2= 69 , mag3= 10 , mag4= 0 , mag5= 0 , mag6= 0 , total= 215
=5631 events on the map below

April 2014 summary

Continental United States: mag<1= 2929 , mag1= 1615 , mag2= 440 , mag3= 79 , mag4= 9 , mag5= 0 , mag7= 0 , total= 5072
Alaska: mag<1= 159 , mag1= 53 , mag2= 42 , mag3= 25 , mag4= 18 , mag5= 5 , mag7= 0 , total= 302
Puerto Rico: mag<1= 0 , mag1= 0 , mag2= 24 , mag3= 15 , mag4= 2 , mag5= 0 , mag7= 0 , total= 41
Hawaii: mag<1= 0 , mag1= 115 , mag2= 48 , mag3= 3 , mag4= 0 , mag5= 0 , mag7= 0 , total= 166
=5581 events on the map below

March 2014 summary

Continental United States: mag<1= 2841 , mag1= 1910 , mag2= 614 , mag3= 113 , mag4= 16 , mag5= 4 , mag7= 0 , total= 5498
Alaska: mag<1= 207 , mag1= 57 , mag2= 149 , mag3= 63 , mag4= 26 , mag5= 4 , mag7= 0 , total= 506
Puerto Rico: mag<1= 0 , mag1= 0 , mag2= 80 , mag3= 39 , mag4= 5 , mag5= 0 , mag7= 0 , total= 124
Hawaii: mag<1= 0 , mag1= 136 , mag2= 37 , mag3= 7 , mag4= 0 , mag5= 0 , mag7= 0 , total= 180
=6308 events on the map below

February 2014 summary

Continental United States: mag<1= 3723 , mag1= 1595 , mag2= 297 , mag3= 56 , mag4= 5 , mag5= 0 , mag7= 0 , total= 5676
Alaska: mag<1= 213 , mag1= 65 , mag2= 185 , mag3= 68 , mag4= 23 , mag5= 3 , mag7= 0 , total= 557
Puerto Rico: mag<1= 0 , mag1= 0 , mag2= 84 , mag3= 71 , mag4= 2 , mag5= 0 , mag7= 0 , total= 157
Hawaii: mag<1= 0 , mag1= 97 , mag2= 37 , mag3= 1 , mag4= 0 , mag5= 0 , mag7= 0 , total= 135
=6525 events on the map below

January 2014 summary

Continental United States: mag<1= 2951 , mag1= 1692 , mag2= 302 , mag3= 49 , mag4= 5 , mag5= 0 , mag6= 0 , total= 4999
Alaska: mag<1= 123 , mag1= 48 , mag2= 105 , mag3= 42 , mag4= 23 , mag5= 2 , mag6= 0 , total= 343
Puerto Rico: mag<1= 0 , mag1= 1 , mag2= 202 , mag3= 103 , mag4= 5 , mag5= 0 , mag6= 1 , total= 312
Hawaii: mag<1= 0 , mag1= 124 , mag2= 34 , mag3= 2 , mag4= 0 , mag5= 0 , mag6= 0 , total= 160
=5814 events on the map below

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