77840 Zip Code Natural Disasters and Weather Extremes
The chance of earthquake damage in 77840 Zip Code is about the same as Texas average and is much lower than the national average. The risk of tornado damage in 77840 Zip Code is lower than Texas average and is about the same as the national average.
Earthquake Index, #1778
| 77840 Zip Code | 0.00 |
| Texas | 0.04 |
| U.S. | 1.81 |
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #1
| 77840 Zip Code | 0.0000 |
| Texas | 0.0000 |
| U.S. | 0.0023 |
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #1848
| 77840 Zip Code | 140.96 |
| Texas | 208.58 |
| U.S. | 136.45 |
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 1,882 other weather extremes events within 50 miles of 77840 Zip Code were recorded from 1950 to 2010. The following is a break down of these events:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 0 | Cold: | 7 | Dense Fog: | 0 | Drought: | 117 |
| Dust Storm: | 4 | Flood: | 320 | Hail: | 569 | Heat: | 21 | Heavy Snow: | 11 |
| High Surf: | 3 | Hurricane: | 2 | Ice Storm: | 23 | Landslide: | 0 | Strong Wind: | 42 |
| Thunderstorm Winds: | 651 | Tropical Storm: | 9 | Wildfire: | 6 | Winter Storm: | 21 | Winter Weather: | 23 |
| Other: | 53 | ||||||||
Volcanos Nearby
No volcano is found in or near 77840 Zip Code.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near 77840 Zip Code.
No historical earthquake events found in or near 77840 Zip Code.
Historical Tornado Events
A total of 46 historical tornado events that had recorded magnitude of 2 or above found in or near 77840 Zip Code.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 2.2 | 1954-04-30 | 2 | 30°38'N / 96°20'W | 30°39'N / 96°19'W | 1.90 Miles | 67 Yards | 0 | 0 | 0K | 0 | Brazos |
| 5.1 | 1956-04-05 | 3 | 30°41'N / 96°22'W | 30°41'N / 96°17'W | 5.20 Miles | 67 Yards | 0 | 0 | 250K | 0 | Brazos |
| 9.5 | 1953-12-02 | 2 | 30°38'N / 96°29'W | 0.20 Mile | 67 Yards | 0 | 0 | 25K | 0 | Brazos | |
| 15.5 | 1983-11-19 | 2 | 30°24'N / 96°14'W | 1.10 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Brazos | |
| 15.5 | 1969-04-04 | 2 | 30°30'N / 96°38'W | 30°35'N / 96°31'W | 9.00 Miles | 440 Yards | 0 | 0 | 3K | 0 | Burleson |
| 17.9 | 2000-03-10 | 3 | 30°25'N / 96°41'W | 30°24'N / 96°21'W | 21.00 Miles | 800 Yards | 0 | 2 | 1.0M | 0 | Burleson |
| Brief Description: Tornado touched down near Harmony at 1955 CST with significant tree damage including an 18 inch diameter tree blown down. A trailer was also significantly damaged. Tornado then tracked to just south of Center Line with mostly F0 tree damage along its path. Tornado then reached the Pin Oak subdivision at about 2022 CST. Several trailers, including a double-wide, were destroyed. A total of 7 homes were destroyed and another 10 severely damaged in this area, with damage reaching F2 status. Tornado then struck a ranch on the south side of FM 1361 with large trees uprooted or cut in half and windows blown out and portion of roof torn off large frame house. Several rural outbuildings at the ranch which had been bolted down were destroyed. Damage in this area was rated F3 with damage swath up to a half mile wide. Tornado then tracked to just north of Clay by 2051 CST with a narrow swath of F0 to F1 tree damage along the path. When tornado passed north of Clay before dissipating, car was blown off road and damage swath reached 200 yards wide. | |||||||||||
| 18.3 | 1959-05-10 | 3 | 30°46'N / 96°36'W | 30°54'N / 96°23'W | 15.80 Miles | 333 Yards | 0 | 7 | 3K | 0 | Robertson |
| 18.8 | 1953-12-02 | 2 | 30°22'N / 96°11'W | 2 | 5 | 0K | 0 | Washington | |||
| 20.8 | 1989-06-07 | 2 | 30°39'N / 96°44'W | 30°36'N / 96°37'W | 6.00 Miles | 150 Yards | 0 | 4 | 2.5M | 0 | Burleson |
| 21.8 | 1987-11-15 | 2 | 30°35'N / 96°41'W | 30°41'N / 96°42'W | 7.00 Miles | 500 Yards | 2 | 12 | 2.5M | 0 | Burleson |
| 22.0 | 1998-10-17 | 2 | 30°30'N / 96°41'W | 30°33'N / 96°41'W | 3.50 Miles | 100 Yards | 0 | 0 | 1.5M | 0 | Burleson |
| Brief Description: Two tornadoes touched down in the Caldwell area causing substantial damage. Twenty-two homes were completely destroyed, 37 sustained major damage, and 101 homes with minor damage. Caldwell Middle School also had major damage. Tombstones weighing more than 1000 pounds were unearthed and moved. | |||||||||||
| 22.2 | 1981-02-10 | 2 | 30°46'N / 96°00'W | 2.50 Miles | 77 Yards | 0 | 2 | 250K | 0 | Grimes | |
| 22.5 | 1964-05-01 | 2 | 30°18'N / 96°12'W | 30°20'N / 96°07'W | 5.60 Miles | 880 Yards | 0 | 0 | 25K | 0 | Washington |
| 23.0 | 1987-11-15 | 2 | 30°41'N / 96°42'W | 30°45'N / 96°41'W | 3.00 Miles | 500 Yards | 0 | 0 | 2.5M | 0 | Milam |
| 25.7 | 1967-05-01 | 2 | 30°55'N / 96°05'W | 0.60 Mile | 33 Yards | 0 | 0 | 3K | 0 | Madison | |
| 26.4 | 1989-06-07 | 2 | 30°40'N / 96°48'W | 30°39'N / 96°44'W | 4.00 Miles | 150 Yards | 0 | 0 | 2.5M | 0 | Milam |
| 26.5 | 1954-10-22 | 2 | 30°55'N / 96°07'W | 30°55'N / 96°00'W | 7.10 Miles | 100 Yards | 0 | 0 | 25K | 0 | Madison |
| 26.9 | 1981-05-16 | 2 | 30°27'N / 96°48'W | 30°24'N / 96°39'W | 9.70 Miles | 73 Yards | 0 | 1 | 250K | 0 | Burleson |
| 27.6 | 1957-03-20 | 3 | 30°23'N / 96°47'W | 30°27'N / 96°41'W | 7.60 Miles | 880 Yards | 0 | 0 | 25K | 0 | Burleson |
| 29.1 | 1981-05-09 | 2 | 30°35'N / 96°52'W | 30°29'N / 96°45'W | 9.70 Miles | 33 Yards | 0 | 0 | 250K | 0 | Burleson |
| 30.4 | 1954-04-30 | 3 | 30°37'N / 97°12'W | 31°29'N / 95°28'W | 118.8 Miles | 880 Yards | 0 | 0 | 250K | 0 | Milam |
| 30.7 | 1971-02-25 | 2 | 30°10'N / 96°23'W | 0.30 Mile | 33 Yards | 0 | 0 | 3K | 0 | Washington | |
| 30.7 | 1971-02-25 | 2 | 30°10'N / 96°23'W | 0.30 Mile | 33 Yards | 0 | 0 | 0K | 0 | Washington | |
| 32.8 | 1984-02-11 | 2 | 31°05'N / 96°18'W | 1.50 Miles | 100 Yards | 0 | 3 | 2.5M | 0 | Leon | |
| 34.6 | 1987-11-15 | 2 | 30°58'N / 96°04'W | 31°06'N / 95°58'W | 7.00 Miles | 200 Yards | 3 | 2 | 2.5M | 0 | Madison |
| 34.8 | 1981-05-09 | 2 | 30°45'N / 96°57'W | 30°35'N / 96°52'W | 12.60 Miles | 60 Yards | 0 | 0 | 250K | 0 | Milam |
| 34.9 | 1957-03-20 | 3 | 30°16'N / 96°50'W | 30°19'N / 96°44'W | 7.20 Miles | 33 Yards | 0 | 2 | 25K | 0 | Lee |
| 35.6 | 1975-04-29 | 2 | 30°52'N / 97°00'W | 31°00'N / 96°35'W | 26.30 Miles | 200 Yards | 0 | 0 | 250K | 0 | Milam |
| 35.7 | 1950-06-05 | 3 | 30°11'N / 96°24'W | 30°01'N / 96°03'W | 23.90 Miles | 67 Yards | 0 | 6 | 250K | 0 | Washington |
| 35.9 | 1957-03-20 | 3 | 30°19'N / 96°55'W | 30°23'N / 96°47'W | 9.30 Miles | 1760 Yards | 0 | 2 | 25K | 0 | Lee |
| 36.8 | 1962-02-23 | 2 | 30°15'N / 96°47'W | 2.00 Miles | 50 Yards | 0 | 0 | 25K | 0 | Lee | |
| 37.6 | 1957-10-14 | 2 | 30°06'N / 96°06'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Waller | |
| 37.7 | 1981-05-09 | 2 | 30°27'N / 95°45'W | 30°23'N / 95°43'W | 5.10 Miles | 40 Yards | 0 | 2 | 25K | 0 | Montgomery |
| 38.4 | 1954-04-30 | 2 | 30°08'N / 96°49'W | 30°12'N / 96°37'W | 12.80 Miles | 880 Yards | 0 | 0 | 25K | 0 | Fayette |
| 39.2 | 1957-10-14 | 3 | 30°07'N / 96°00'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Waller | |
| 39.6 | 1953-12-02 | 3 | 30°30'N / 96°58'W | 30°32'N / 97°00'W | 3.30 Miles | 100 Yards | 0 | 4 | 25K | 0 | Lee |
| 41.1 | 1962-06-01 | 2 | 30°39'N / 97°01'W | 0.50 Mile | 50 Yards | 0 | 0 | 0K | 0 | Milam | |
| 42.5 | 1987-11-15 | 2 | 31°06'N / 95°58'W | 31°09'N / 95°54'W | 3.00 Miles | 200 Yards | 0 | 0 | 2.5M | 0 | Leon |
| 44.2 | 1962-06-18 | 2 | 30°04'N / 95°56'W | 0 | 0 | 0K | 0 | Waller | |||
| 44.5 | 1965-09-22 | 3 | 30°13'N / 95°44'W | 0.80 Mile | 33 Yards | 0 | 0 | 0K | 0 | Montgomery | |
| 45.5 | 1956-03-21 | 2 | 30°57'N / 96°59'W | 1.00 Mile | 33 Yards | 0 | 0 | 0K | 0 | Milam | |
| 45.6 | 1961-03-16 | 2 | 29°57'N / 96°16'W | 0.10 Mile | 80 Yards | 0 | 0 | 3K | 0 | Austin | |
| 45.7 | 1957-10-14 | 2 | 30°03'N / 95°55'W | 0.50 Mile | 17 Yards | 0 | 0 | 25K | 0 | Waller | |
| 46.7 | 1957-03-31 | 2 | 30°43'N / 95°33'W | 2.00 Miles | 100 Yards | 0 | 2 | 25K | 0 | Walker | |
| 47.4 | 1987-11-15 | 2 | 30°11'N / 96°57'W | 1.50 Miles | 200 Yards | 0 | 8 | 2.5M | 0 | Lee | |
| 50.0 | 1971-11-17 | 2 | 30°26'N / 97°21'W | 30°46'N / 96°59'W | 31.70 Miles | 33 Yards | 0 | 0 | 250K | 0 | Bastrop |
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.