Earthquake Information for Pima County, Arizona

Pima County, AZ has a moderate earthquake risk, with a total of 386 earthquakes since 1931. The USGS database shows that there is a 10.79% chance of a major earthquake within 50km of Pima County, AZ within the next 50 years. The largest earthquake within 30 miles of Pima County, AZ was a Magnitude in .

Risk Level:
Moderate

Total Number of Earthquakes in Pima County since 1931

386

Probability of A 5.0 Earthquake within next 50 years

10.79%

Most Recent
Largest

10/21/2013 - 4.7 mag, 14.3mi depth 133 mi from Ali Chuk, AZ
10/4/2013 - 4.3 mag, 5.7mi depth 163 mi from Ali Chuk, AZ
10/2/2013 - 4.3 mag, 10.0mi depth 185 mi from Ali Chuk, AZ
8/27/2013 - 4.2 mag, 10.0mi depth 175 mi from Ali Chuk, AZ
8/23/2013 - 4.0 mag, 10.0mi depth 122 mi from Ali Chuk, AZ
8/14/2013 - 4.1 mag, 16.1mi depth 233 mi from San Miguel, AZ
8/5/2013 - 4.4 mag, 8.8mi depth 134 mi from Ali Chuk, AZ
6/11/2013 - 4.4 mag, 12.5mi depth 156 mi from Ali Chuk, AZ
6/7/2013 - 4.7 mag, 10.1mi depth 147 mi from Ali Chuk, AZ
5/18/2013 - 4.1 mag, 9.1mi depth 143 mi from Ali Chuk, AZ
8/30/2012 - 4.1 mag, 10.0mi depth 136 mi from Ali Chuk, AZ
8/28/2012 - 4.1 mag, 10.0mi depth 130 mi from Ali Chuk, AZ
8/28/2012 - 4.0 mag, 10.0mi depth 133 mi from Ali Chuk, AZ
8/28/2012 - 4.5 mag, 10.0mi depth 132 mi from Ali Chuk, AZ
8/28/2012 - 4.2 mag, 10.0mi depth 158 mi from Ali Chuk, AZ
8/28/2012 - 4.2 mag, 10.0mi depth 125 mi from Ali Chuk, AZ
8/27/2012 - 5.2 mag, 10.0mi depth 119 mi from Ali Chuk, AZ
8/27/2012 - 5.2 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
8/27/2012 - 4.1 mag, 10.0mi depth 131 mi from Ali Chuk, AZ
8/25/2012 - 4.0 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
8/25/2012 - 4.2 mag, 10.0mi depth 131 mi from Ali Chuk, AZ
8/25/2012 - 4.3 mag, 10.0mi depth 104 mi from Ali Chuk, AZ
4/16/2012 - 4.1 mag, 10.0mi depth 200 mi from San Miguel, AZ
4/14/2012 - 4.0 mag, 5.8mi depth 213 mi from Ali Chuk, AZ
4/14/2012 - 4.1 mag, 10.0mi depth 212 mi from San Miguel, AZ
4/13/2012 - 4.0 mag, 10.0mi depth 195 mi from San Miguel, AZ
4/13/2012 - 4.0 mag, 13.9mi depth 228 mi from San Miguel, AZ
4/12/2012 - 4.1 mag, 10.0mi depth 202 mi from San Miguel, AZ
4/12/2012 - 7.0 mag, 13.0mi depth 218 mi from San Miguel, AZ
4/12/2012 - 4.0 mag, 10.0mi depth 218 mi from San Miguel, AZ
4/12/2012 - 4.4 mag, 16.1mi depth 216 mi from Ali Chuk, AZ
4/12/2012 - 4.9 mag, 10.0mi depth 216 mi from San Miguel, AZ
4/12/2012 - 4.3 mag, 10.0mi depth 226 mi from San Miguel, AZ
4/12/2012 - 4.9 mag, 10.0mi depth 217 mi from Ali Chuk, AZ
4/12/2012 - 4.7 mag, 10.0mi depth 218 mi from San Miguel, AZ
4/12/2012 - 6.0 mag, 9.0mi depth 207 mi from San Miguel, AZ
4/12/2012 - 4.0 mag, 10.0mi depth 206 mi from Ali Chuk, AZ
4/12/2012 - 4.1 mag, 10.0mi depth 218 mi from San Miguel, AZ
4/12/2012 - 4.4 mag, 10.0mi depth 278 mi from Ali Chuk, AZ
1/22/2012 - 4.6 mag, 10.0mi depth 141 mi from Ali Chuk, AZ
12/23/2011 - 4.1 mag, 10.0mi depth 137 mi from Ali Chuk, AZ
12/23/2011 - 4.8 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
9/17/2011 - 4.0 mag, 15.0mi depth 213 mi from Ali Chuk, AZ
4/30/2011 - 4.2 mag, 10.0mi depth 218 mi from Ali Chuk, AZ
4/29/2011 - 5.2 mag, 10.0mi depth 215 mi from San Miguel, AZ
9/17/2010 - 4.0 mag, 10.0mi depth 182 mi from Ali Chuk, AZ
9/15/2010 - 4.2 mag, 10.0mi depth 177 mi from Ali Chuk, AZ
9/15/2010 - 4.4 mag, 10.0mi depth 173 mi from Ali Chuk, AZ
9/15/2010 - 5.3 mag, 10.0mi depth 169 mi from Ali Chuk, AZ
9/15/2010 - 4.3 mag, 10.0mi depth 171 mi from Ali Chuk, AZ
9/8/2010 - 4.0 mag, 10.0mi depth 115 mi from Ali Chuk, AZ
5/11/2010 - 4.5 mag, 10.0mi depth 323 mi from Ali Chuk, AZ
5/9/2010 - 4.8 mag, 10.0mi depth 327 mi from Ali Chuk, AZ
3/30/2010 - 4.2 mag, 10.0mi depth 108 mi from Ali Chuk, AZ
1/7/2010 - 4.1 mag, 10.0mi depth 126 mi from Ali Chuk, AZ
12/21/2009 - 4.8 mag, 10.0mi depth 202 mi from Ali Chuk, AZ
10/16/2009 - 4.6 mag, 10.0mi depth 147 mi from Ali Chuk, AZ
10/16/2009 - 4.1 mag, 10.0mi depth 141 mi from Ali Chuk, AZ
10/16/2009 - 4.2 mag, 10.0mi depth 134 mi from Ali Chuk, AZ
10/14/2009 - 4.5 mag, 10.0mi depth 139 mi from Ali Chuk, AZ
10/8/2009 - 4.7 mag, 10.0mi depth 136 mi from Ali Chuk, AZ
10/8/2009 - 4.5 mag, 10.0mi depth 128 mi from Ali Chuk, AZ
10/8/2009 - 4.6 mag, 10.0mi depth 151 mi from Ali Chuk, AZ
10/8/2009 - 4.5 mag, 10.0mi depth 154 mi from Ali Chuk, AZ
9/13/2009 - 5.0 mag, 10.0mi depth 175 mi from Ali Chuk, AZ
8/5/2009 - 5.8 mag, 10.0mi depth 169 mi from Ali Chuk, AZ
8/4/2009 - 4.1 mag, 10.0mi depth 188 mi from Ali Chuk, AZ
8/3/2009 - 4.9 mag, 10.0mi depth 194 mi from Ali Chuk, AZ
8/3/2009 - 6.9 mag, 10.0mi depth 191 mi from San Miguel, AZ
8/3/2009 - 5.5 mag, 10.0mi depth 202 mi from San Miguel, AZ
8/3/2009 - 6.2 mag, 10.0mi depth 187 mi from Ali Chuk, AZ
8/3/2009 - 4.9 mag, 10.0mi depth 198 mi from San Miguel, AZ
2/24/2009 - 4.6 mag, 4.0mi depth 159 mi from Ali Chuk, AZ
2/24/2009 - 4.0 mag, 10.0mi depth 159 mi from Ali Chuk, AZ
12/30/2008 - 3.0 mag, 10.0mi depth 125 mi from Ali Chuk, AZ
12/11/2008 - 3.7 mag, 10.0mi depth 126 mi from Ali Chuk, AZ
11/13/2008 - 2.8 mag, 5.0mi depth 160 mi from Ali Chuk, AZ
10/8/2008 - 3.6 mag, 10.0mi depth 115 mi from Ali Chuk, AZ
9/10/2008 - 4.1 mag, 10.0mi depth 220 mi from San Miguel, AZ
8/5/2008 - 4.0 mag, 10.0mi depth 216 mi from San Miguel, AZ
7/25/2008 - 3.9 mag, 10.0mi depth 168 mi from Ali Chuk, AZ
5/29/2008 - 3.5 mag, 10.0mi depth 167 mi from Ali Chuk, AZ
5/14/2008 - 3.6 mag, 10.0mi depth 111 mi from Ali Chuk, AZ
5/14/2008 - 4.8 mag, 10.0mi depth 150 mi from Ali Chuk, AZ
3/21/2008 - 4.0 mag, 10.0mi depth 240 mi from San Miguel, AZ
2/19/2008 - 3.6 mag, 10.0mi depth 152 mi from Ali Chuk, AZ
2/19/2008 - 5.1 mag, 10.0mi depth 166 mi from Ali Chuk, AZ
2/19/2008 - 3.3 mag, 10.0mi depth 167 mi from Ali Chuk, AZ
2/19/2008 - 5.0 mag, 10.0mi depth 215 mi from Ali Chuk, AZ
1/12/2008 - 3.9 mag, 10.0mi depth 124 mi from Ali Chuk, AZ
1/10/2008 - 3.8 mag, 10.0mi depth 100 mi from Ali Chuk, AZ
8/28/2007 - 4.0 mag, 10.0mi depth 134 mi from Ali Chuk, AZ
7/25/2007 - 3.8 mag, 10.0mi depth 170 mi from San Miguel, AZ
5/7/2007 - 4.0 mag, 10.0mi depth 210 mi from Ali Chuk, AZ
3/25/2007 - 3.6 mag, 10.0mi depth 133 mi from Ali Chuk, AZ
1/29/2007 - 4.0 mag, 10.0mi depth 351 mi from Ali Chuk, AZ
1/29/2007 - 4.1 mag, 10.0mi depth 360 mi from Ali Chuk, AZ
1/18/2007 - 4.8 mag, 10.0mi depth 129 mi from Ali Chuk, AZ
12/10/2006 - 0.0 mag, 10.0mi depth 551 mi from Ali Chuk, AZ
12/8/2006 - 4.1 mag, 10.0mi depth 356 mi from Ali Chuk, AZ

4/29/1954 - 7.1 mag, 15.0mi depth 193 mi from San Miguel, AZ
4/12/2012 - 7.0 mag, 13.0mi depth 218 mi from San Miguel, AZ
8/3/2009 - 6.9 mag, 10.0mi depth 191 mi from San Miguel, AZ
7/7/1932 - 6.6 mag, 15.0mi depth 193 mi from Ali Chuk, AZ
4/29/1954 - 6.6 mag, 0.0mi depth 200 mi from San Miguel, AZ
7/8/1975 - 6.5 mag, 2.3mi depth 178 mi from Ali Chuk, AZ
12/2/1984 - 6.3 mag, 15.0mi depth 814 mi from Ali Chuk, AZ
8/3/2009 - 6.2 mag, 10.0mi depth 187 mi from Ali Chuk, AZ
4/12/2012 - 6.0 mag, 9.0mi depth 207 mi from San Miguel, AZ
11/21/1977 - 5.9 mag, 3.2mi depth 186 mi from Ali Chuk, AZ
9/24/2004 - 5.9 mag, 13.0mi depth 214 mi from San Miguel, AZ
8/5/2009 - 5.8 mag, 10.0mi depth 169 mi from Ali Chuk, AZ
3/5/1993 - 5.7 mag, 10.0mi depth 217 mi from San Miguel, AZ
2/7/1982 - 5.6 mag, 10.0mi depth 194 mi from Ali Chuk, AZ
11/12/2003 - 5.6 mag, 10.0mi depth 201 mi from Ali Chuk, AZ
8/3/2009 - 5.5 mag, 10.0mi depth 202 mi from San Miguel, AZ
2/12/1988 - 5.5 mag, 15.0mi depth 149 mi from Ali Chuk, AZ
5/28/1986 - 5.5 mag, 10.0mi depth 845 mi from Ali Chuk, AZ
9/6/1984 - 5.4 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
10/5/1984 - 5.4 mag, 10.0mi depth 837 mi from Ali Chuk, AZ
11/29/1978 - 5.4 mag, 15.0mi depth 140 mi from Ali Chuk, AZ
2/14/1991 - 5.4 mag, 10.0mi depth 167 mi from Ali Chuk, AZ
11/26/1997 - 5.4 mag, 10.0mi depth 166 mi from Ali Chuk, AZ
5/22/1992 - 5.3 mag, 10.0mi depth 342 mi from Ali Chuk, AZ
9/15/2010 - 5.3 mag, 10.0mi depth 169 mi from Ali Chuk, AZ
8/30/1980 - 5.2 mag, 15.0mi depth 163 mi from Ali Chuk, AZ
9/21/1980 - 5.2 mag, 15.0mi depth 159 mi from Ali Chuk, AZ
11/26/1984 - 5.2 mag, 10.0mi depth 826 mi from Ali Chuk, AZ
10/13/1973 - 5.2 mag, 15.0mi depth 168 mi from Ali Chuk, AZ
8/27/2012 - 5.2 mag, 10.0mi depth 119 mi from Ali Chuk, AZ
8/27/2012 - 5.2 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
6/27/1984 - 5.2 mag, 10.0mi depth 159 mi from Ali Chuk, AZ
9/28/1984 - 5.2 mag, 10.0mi depth 835 mi from Ali Chuk, AZ
4/29/2011 - 5.2 mag, 10.0mi depth 215 mi from San Miguel, AZ
5/1/2006 - 5.1 mag, 10.0mi depth 153 mi from Ali Chuk, AZ
4/27/2005 - 5.1 mag, 10.0mi depth 143 mi from Ali Chuk, AZ
2/12/1988 - 5.1 mag, 10.0mi depth 163 mi from Ali Chuk, AZ
1/13/1990 - 5.1 mag, 10.0mi depth 328 mi from Ali Chuk, AZ
2/19/2008 - 5.1 mag, 10.0mi depth 166 mi from Ali Chuk, AZ
7/23/1973 - 5.0 mag, 33.0mi depth 91 mi from Ali Chuk, AZ
9/13/2009 - 5.0 mag, 10.0mi depth 175 mi from Ali Chuk, AZ
10/11/1973 - 5.0 mag, 33.0mi depth 155 mi from Ali Chuk, AZ
2/19/2008 - 5.0 mag, 10.0mi depth 215 mi from Ali Chuk, AZ
9/12/1984 - 5.0 mag, 10.0mi depth 851 mi from Ali Chuk, AZ
9/15/1984 - 5.0 mag, 10.0mi depth 836 mi from Ali Chuk, AZ
10/10/1984 - 5.0 mag, 10.0mi depth 855 mi from Ali Chuk, AZ
9/28/1984 - 5.0 mag, 10.0mi depth 837 mi from Ali Chuk, AZ
11/29/2006 - 5.0 mag, 10.0mi depth 365 mi from Ali Chuk, AZ
8/29/1980 - 5.0 mag, 15.0mi depth 118 mi from Ali Chuk, AZ
12/15/1976 - 5.0 mag, 33.0mi depth 138 mi from Ali Chuk, AZ
4/27/1986 - 5.0 mag, 10.0mi depth 119 mi from Ali Chuk, AZ
10/1/1984 - 5.0 mag, 10.0mi depth 851 mi from Ali Chuk, AZ
12/10/1984 - 5.0 mag, 10.0mi depth 832 mi from Ali Chuk, AZ
4/12/2012 - 4.9 mag, 10.0mi depth 217 mi from Ali Chuk, AZ
5/1/2006 - 4.9 mag, 10.0mi depth 184 mi from Ali Chuk, AZ
10/21/1976 - 4.9 mag, 33.0mi depth 93 mi from Ali Chuk, AZ
8/15/2003 - 4.9 mag, 10.0mi depth 255 mi from San Miguel, AZ
10/20/1984 - 4.9 mag, 10.0mi depth 840 mi from Ali Chuk, AZ
8/3/2009 - 4.9 mag, 10.0mi depth 198 mi from San Miguel, AZ
10/22/1984 - 4.9 mag, 10.0mi depth 842 mi from Ali Chuk, AZ
12/1/2006 - 4.9 mag, 10.0mi depth 366 mi from Ali Chuk, AZ
8/3/2009 - 4.9 mag, 10.0mi depth 194 mi from Ali Chuk, AZ
3/5/1993 - 4.9 mag, 10.0mi depth 211 mi from Ali Chuk, AZ
10/11/1973 - 4.9 mag, 32.0mi depth 153 mi from Ali Chuk, AZ
10/29/1981 - 4.9 mag, 10.0mi depth 42 mi from Ali Chuk, AZ
10/9/1999 - 4.9 mag, 10.0mi depth 173 mi from Ali Chuk, AZ
9/5/1980 - 4.9 mag, 15.0mi depth 156 mi from Ali Chuk, AZ
4/12/2012 - 4.9 mag, 10.0mi depth 216 mi from San Miguel, AZ
11/24/2000 - 4.9 mag, 10.0mi depth 248 mi from San Miguel, AZ
8/30/1980 - 4.8 mag, 15.0mi depth 152 mi from Ali Chuk, AZ
10/12/1973 - 4.8 mag, 33.0mi depth 148 mi from Ali Chuk, AZ
5/9/2010 - 4.8 mag, 10.0mi depth 327 mi from Ali Chuk, AZ
12/23/2011 - 4.8 mag, 10.0mi depth 118 mi from Ali Chuk, AZ
3/18/1980 - 4.8 mag, 15.0mi depth 141 mi from Ali Chuk, AZ
5/14/2008 - 4.8 mag, 10.0mi depth 150 mi from Ali Chuk, AZ
10/17/1976 - 4.8 mag, 33.0mi depth 150 mi from Ali Chuk, AZ
2/15/1991 - 4.8 mag, 10.0mi depth 176 mi from Ali Chuk, AZ
8/29/1980 - 4.8 mag, 15.0mi depth 131 mi from Ali Chuk, AZ
2/16/1991 - 4.8 mag, 10.0mi depth 184 mi from Ali Chuk, AZ
12/9/1984 - 4.8 mag, 10.0mi depth 836 mi from Ali Chuk, AZ
11/19/1984 - 4.8 mag, 10.0mi depth 829 mi from Ali Chuk, AZ
9/5/1984 - 4.8 mag, 10.0mi depth 87 mi from Ali Chuk, AZ
12/21/2009 - 4.8 mag, 10.0mi depth 202 mi from Ali Chuk, AZ
1/18/2007 - 4.8 mag, 10.0mi depth 129 mi from Ali Chuk, AZ
10/21/2013 - 4.7 mag, 14.3mi depth 133 mi from Ali Chuk, AZ
8/2/1995 - 4.7 mag, 10.0mi depth 153 mi from Ali Chuk, AZ
4/12/2012 - 4.7 mag, 10.0mi depth 218 mi from San Miguel, AZ
10/20/1976 - 4.7 mag, 33.0mi depth 163 mi from Ali Chuk, AZ
6/7/2013 - 4.7 mag, 10.1mi depth 147 mi from Ali Chuk, AZ
10/13/1973 - 4.7 mag, 33.0mi depth 176 mi from Ali Chuk, AZ
10/10/1973 - 4.7 mag, 33.0mi depth 120 mi from Ali Chuk, AZ
10/8/2009 - 4.7 mag, 10.0mi depth 136 mi from Ali Chuk, AZ
11/17/1984 - 4.7 mag, 10.0mi depth 834 mi from Ali Chuk, AZ
6/30/1984 - 4.7 mag, 10.0mi depth 107 mi from Ali Chuk, AZ
10/17/1976 - 4.7 mag, 33.0mi depth 142 mi from Ali Chuk, AZ
10/18/1976 - 4.7 mag, 33.0mi depth 148 mi from Ali Chuk, AZ
3/27/2002 - 4.7 mag, 10.0mi depth 140 mi from Ali Chuk, AZ
12/5/2003 - 4.7 mag, 10.0mi depth 207 mi from Ali Chuk, AZ
11/3/1984 - 4.7 mag, 10.0mi depth 832 mi from Ali Chuk, AZ
1/8/1982 - 4.7 mag, 10.0mi depth 155 mi from San Miguel, AZ

View All

Earthquake Probability for Pima County, AZ

View the probability of a major earthquake within the next 50 years in Pima County, AZ.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2

(within 31 km/51 miles above magnitude)

5.0

10.79%

5.1

9.07%

5.2

9.07%

5.2

7.62%

5.3

6.39%

5.4

5.36%

5.5

4.49%

5.6

3.76%

5.7

3.15%

5.8

2.64%

5.9

2.22%

6.0

1.86%

6.1

1.53%

6.2

1.25%

6.3

1.00%

6.4

0.79%

6.5

0.61%

6.6

0.45%

6.7

0.32%

6.8

0.20%

6.9

0.09%

7.0

0.00%

7.1

0.00%

7.2

0.00%

7.3

0.00%

7.4

0.00%

7.5

0.00%

7.6

0.00%

7.7

0.00%

7.8

0.00%

7.9

0.00%

8.0

0.00%

8.1

0.00%

8.2

0.00%

8.3

0.00%

8.4

0.00%

8.5

0.00%

8.6

0.00%

8.7

0.00%

8.8

0.00%

8.9

0.00%

9.0

0.00%

9.1

0.00%

9.2

0.00%

Earthquake Count for Pima County, AZ

View the number of earthquake incidents in Pima County, AZ by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for Pima County, AZ

Total Number of Earthquakes in Pima County, AZ within 30 miles. All distances and depths in the table are measured in miles.

Date

Magnitude

Depth

10/21/2013

4.7

14.3

Earthquake Information for Pima County, Arizona

Earthquake Probability for Pima County, AZ

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2

Earthquake Count for Pima County, AZ

List of Earthquake Incidents for Pima County, AZ

Risk Of Natural Disasters In Pima County, AZ

Related Pages

Arizona Earthquakes by City