Magnitude 5.4 Earthquake of Calama, Chile 2015-04-13

2015-04-13 22:16:19 (UTC) :North-NorthEast of Calama, Chile

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Magnitude : 5.4

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-13 22:16:19 (UTC)

Earthquake data:

Location : Position of Epicenter 

21.106°S 68.637°W

Depth : Depth of starting Rupture 

115.6 km

Region : Calama, Chile

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

a) 153km (95mi) NNE of Calama, Chile

b) 185km (115mi) ESE of Iquique, Chile

c) 194km (121mi) NE of Tocopilla, Chile

d) 198km (123mi) WSW of Colchani, Bolivia

e) 512km (318mi) S of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.4 mb	± 0.0
Location	21.106°S 68.637°W	± 5.3 km
Depth	115.6 km	± 4.5
Number of Phase Applied1	120
Minimum Distance2	88.61 km (0.80°)
Travel Time Residual3	1.11 sec
Azimuthal Gap4	31°

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 4.5 Earthquake of Putre, Chile 2015-04-08

2015-04-08 10:29:52 (UTC) :South-SouthEast of Putre, Chile

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Magnitude : 4.5

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-08 10:29:52 (UTC)

Earthquake data:

Location : Position of Epicenter 

19.273°S 69.272°W

Depth : Depth of starting Rupture 

109.1 km

Region : Putre, Chile

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

a) 122km (76mi) SSE of Putre, Chile

b) 139km (86mi) NE of Iquique, Chile

c) 140km (87mi) SE of Arica, Chile

d) 174km (108mi) SE of Tacna, Peru

e) 329km (204mi) SSW of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.5 mb	± 0.1
Location	19.273°S 69.272°W	± 6.6 km
Depth	109.1 km	± 6.0
Number of Phase Applied1	67
Minimum Distance2	37.40 km (0.34°)
Travel Time Residual3	1.19 sec
Azimuthal Gap4	47°

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 4.7 Earthquake of Iquique, Chile 2014-10-26

2014-10-26 02:52:53 UTC : Iquique, Chile EARTHQUAKE

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Magnitude: 4.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-26 02:52:53 UTC

1. 2014-10-25 21:52:53 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

20.584°S 70.649°W

Depth : Depth of starting Rupture 

28.4km (17.6mi)

Region : Iquique, Chile

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

a)  66km (41mi) SW of Iquique, Chile

b)  173km (107mi) NNW of Tocopilla, Chile

c)  236km (147mi) S of Arica, Chile

d)  273km (170mi) NW of Calama, Chile

e)  523km (325mi) SSW of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.7 mb	± 0.13
Location	20.584°S, 70.649°W	--
Depth	28.4 km	± 5.2 km
Number of Phase Applied1	44
Minimum Distance2	48.9 km (0.44°)
Travel Time Residual3	0.95 sec
Azimuthal Gap4	143°

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 5.1 Earthquake of San Antonio, Chile 2014-10-23

2014-10-23 23:38:51 UTC : San Antonio, Chile EARTHQUAKE

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Magnitude: 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-23 23:38:51 UTC

1. 2014-10-23 18:38:51 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

34.012°S 72.306°W

Depth : Depth of starting Rupture 

14.4km (8.9mi)

Region : San Antonio, Chile

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

a)  78km (48mi) SW of San Antonio, Chile

b)  82km (51mi) SW of Cartagena, Chile

c)  106km (66mi) WSW of Melipilla, Chile

d)  110km (68mi) NW of Santa Cruz, Chile

e)  165km (103mi) WSW of Santiago, Chile

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 mb	± 0.08
Location	34.012°S, 72.306°W	--
Depth	14.4 km	± 2.0 km
Number of Phase Applied1	55
Minimum Distance2	116.0 km (1.04°)
Travel Time Residual3	0.73 sec
Azimuthal Gap4	53°

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 4.8 Earthquake of San Clemente, Chile 2014-10-20

2014-10-20 10:18:17 UTC : San Clemente, Chile EARTHQUAKE

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Magnitude: 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-20 10:18:17 UTC

1. 2014-10-20 07:18:17 UTC-03:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

35.626°S 71.383°W

Depth : Depth of starting Rupture 

87.5km (54.4mi)

Region : San Clemente, Chile

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

a)  12km (7mi) SE of San Clemente, Chile

b)  31km (19mi) NE of Linares, Chile

c)  33km (21mi) SE of Talca, Chile

d)  33km (21mi) E of San Javier, Chile

e)  249km (155mi) SSW of Santiago, Chile

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.04
Location	35.626°S, 71.383°W	--
Depth	87.5 km	± 5.3 km
Number of Phase Applied1	143
Minimum Distance2	84.6 km (0.76°)
Travel Time Residual3	0.82 sec
Azimuthal Gap4	59°

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)