Magnitude 4.9 Earthquake of Fort Washakie, Wyoming USA 2013 September 21

2013-09-21 13:16:30 UTC : Fort Washakie, Wyoming USA EARTHQUAKE

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Magnitude: 4.9

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2013-09-21 13:16:30 UTC

1. 2013-09-21 07:16:30 UTC-06:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

43.008°N 109.079°W

Depth : Depth of starting Rupture 

5.0km (3.1mi)

Region : Fort Washakie, Wyoming

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 16km (10mi) W of Fort Washakie, Wyoming

b) 57km (35mi) W of Riverton, Wyoming

c) 158km (98mi) N of Rock Springs, Wyoming

d) 167km (104mi) N of Green River, Wyoming

e) 341km (212mi) NE of Salt Lake City, Utah

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.9 mb	± 0.05
Location	43.008°N, 109.079°W	--
Depth	5.0 km	± 2.0 km
Number of Phase Applied1	39
Minimum Distance2	47.4 km (0.43°)
Travel Time Residual3	0.76 sec
Azimuthal Gap4	43°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 2.6 Earthquake of Willows, California USA 2013 May 15

2013-05-15 22:15:50 UTC : Willows, California USA EARTHQUAKE

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Magnitude: 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-15 22:15:50 UTC

2013-05-15 15:15:50 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

39.508°N 121.988°W

Depth : Depth of starting Rupture 

22.6km (14.0mi)

Region : Willows, California

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 17km (11mi) E of Willows, California

b) 27km (17mi) SSW of Chico, California

c) 37km (23mi) W of Oroville, California

d) 42km (26mi) SW of Paradise, California

e) 111km (69mi) NNW of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 Md	± 0.20
Location	39.508°N, 121.988°W	± 0.4 km
Depth	22.6 km	± 0.8 km
Number of Phase Applied1	54
Minimum Distance2	29.0 km (0.26°)
Travel Time Residual3	0.29 sec
Azimuthal Gap4	32°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 4.0 Earthquake of Afton, Wyoming USA 2013 May 16

2013-05-16 05:23:52 UTC : Afton, Wyoming USA EARTHQUAKE

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Magnitude: 4.0

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-16 05:23:52 UTC

2013-05-15 23:23:52 UTC-06:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

42.779°N 111.136°W

Depth : Depth of starting Rupture 

5.0km (3.1mi)

Region : Afton, Wyoming

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 17km (11mi) WNW of Afton, Wyoming

b) 102km (63mi) SE of Ammon, Idaho

c) 105km (65mi) SE of Idaho Falls, Idaho

d) 107km (66mi) E of Pocatello, Idaho

e) 232km (144mi) NNE of Salt Lake City, Utah

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.0 ML	± 0.04
Location	42.779°N, 111.136°W	± 9.6 km
Depth	5.0 km	± 5.1 km
Number of Phase Applied1	40
Minimum Distance2	3.3 km (0.03°)
Travel Time Residual3	1.31 sec
Azimuthal Gap4	61°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 2.9 Earthquake of YELLOWSTONE NATIONAL PARK, WYOMING USA 2013 May 07

2013 May 07 13:22:33 UTC : YELLOWSTONE NATIONAL PARK, WYOMING USA EARTHQUAKE

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Magnitude: 2.9

Date-Time: Tuesday, May 07, 2013 at 13:22:33 UTC

Tuesday, May 07, 2013 at 07:22:33 AM at epicenter

Earthquake data:

Location : 44.583°N, 110.976°W

Depth : 9.5 km (5.9 miles)

Region : YELLOWSTONE NATIONAL PARK, WYOMING

Distances:

a) 14 km (8 miles) SE (131°) from West Yellowstone, MT

b) 30 km (19 miles) ENE (72°) from Island Park, ID

c) 55 km (34 miles) SSW (202°) from Gardiner, MT

c) 432 km (269 miles) N (10°) from Salt Lake City, UT

Location Uncertainty: horizontal +/- 0.4 km (0.2 miles); depth +/- 0.8 km (0.5 miles)

Parameters: Nph= 37, Dmin=10 km, Rmss=0.24 sec, Gp= 40°, M-type=local magnitude (ML), Version=3

Magnitude 2.7 Earthquake of YELLOWSTONE NATIONAL PARK, WYOMING USA 2013 May 06

2013 May 06 01:14:48 UTC : YELLOWSTONE NATIONAL PARK, WYOMING USA EARTHQUAKE

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Magnitude: 2.7

Date-Time: Monday, May 06, 2013 at 01:14:48 UTC

Sunday, May 05, 2013 at 07:14:48 PM at epicenter

Earthquake data:

Location : 44.585°N, 110.974°W

Depth : 10.1 km (6.3 miles)

Region : YELLOWSTONE NATIONAL PARK, WYOMING

Distances:

a) 14 km (8 miles) SE (130°) from West Yellowstone, MT

b) 30 km (19 miles) ENE (72°) from Island Park, ID

c) 54 km (34 miles) SSW (202°) from Gardiner, MT

c) 432 km (269 miles) N (10°) from Salt Lake City, UT

Location Uncertainty: horizontal +/- 0.3 km (0.2 miles); depth +/- 0.6 km (0.4 miles)

Parameters: Nph= 37, Dmin=9 km, Rmss=0.19 sec, Gp= 40°, M-type=local magnitude (ML), Version=3

Magnitude 2.9 Earthquake of YELLOWSTONE NATIONAL PARK, WYOMING USA 2013 May 03

2013 May 03 10:43:10 UTC : YELLOWSTONE NATIONAL PARK, WYOMING USA EARTHQUAKE

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Magnitude: 2.9

Date-Time: Friday, May 03, 2013 at 10:43:10 UTC

Friday, May 03, 2013 at 04:43:10 AM at epicenter

Earthquake data:

Location : 44.686°N, 110.044°W

Depth : 5 km (3.1 miles)

Region : YELLOWSTONE NATIONAL PARK, WYOMING

Distances:

a) 38 km (24 miles) SSW (193°) from Cooke City-Silver Gate, MT

b) 66 km (41 miles) SE (126°) from Gardiner, MT

c) 80 km (50 miles) WNW (283°) from Cody, WY

c) 462 km (287 miles) NNE (18°) from Salt Lake City, UT

Location Uncertainty: horizontal +/- 1 km (0.6 miles); depth +/- 0.5 km (0.3 miles)

Parameters: Nph= 16, Dmin=11 km, Rmss=0.12 sec, Gp=198°, M-type=local magnitude (ML), Version=6

Magnitude 3.1 Earthquake of YELLOWSTONE NATIONAL PARK, WYOMING 2013 April 09

2013 April 09 09:33:42 UTC : YELLOWSTONE NATIONAL PARK, WYOMING USA EARTHQUAKE

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Magnitude: 3.1

Date-Time: Tuesday, April 09, 2013 at 09:33:42 UTC

Tuesday, April 09, 2013 at 03:33:42 AM at epicenter

Earthquake data:

Location : 44.662°N, 110.460°W

Depth : 0.9 km (~0.6 mile)

Region : YELLOWSTONE NATIONAL PARK, WYOMING

Distances:

a) 46 km (29 miles) SSE (154°) from Gardiner, MT

b) 51 km (32 miles) E (90°) from West Yellowstone, MT

c) 57 km (36 miles) SW (226°) from Cooke City-Silver Gate, MT

d) 450 km (280 miles) NNE (15°) from Salt Lake City, UT

Location Uncertainty: horizontal +/- 0.5 km (0.3 miles); depth +/- 0.3 km (0.2 miles)

Parameters: Nph= 32, Dmin=7 km, Rmss=0.23 sec, Gp= 54°, M-type=local magnitude (ML), Version=4