Magnitude 2.8 Earthquake of Calipatria, California 2015-05-13

2015-05-13 06:02:26 (UTC) : West-NorthWest of Calipatria, California

earthquake monitor, California earthquake, earthquake realtime

Magnitude : 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-13 06:02:26 (UTC)

Earthquake data:

Location : Position of Epicenter 

33.169°N 115.642°W

Depth : Depth of starting Rupture 

2.8 km

Region : Calipatria, California

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

a) 13km (8mi) WNW of Calipatria, California

b) 14km (9mi) SW of Niland, California

c) 15km (9mi) N of Westmorland, California

d) 22km (14mi) SSE of Bombay Beach, California

e) 43km (27mi) N of El Centro, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 ml	± 0.1
Location	33.169°N 115.642°W	± 6.1 km
Depth	2.8 km	± 31.6
Number of Phase Applied1	46
Minimum Distance2	2.40 km (0.02°)
Travel Time Residual3	0.28 sec
Azimuthal Gap4	30°

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 3.9 Earthquake of San Jacinto, California 2015-05-06

2015-05-06 07:39:47 (UTC) :North-NorthWest of San Jacinto, California

earthquake monitor, California earthquake, earthquake realtime

Magnitude : 3.9

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-06 07:39:47 (UTC)

Earthquake data:

Location : Position of Epicenter 

33.817°N 116.978°W

Depth : Depth of starting Rupture 

15.3 km

Region : San Jacinto, California

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

a) 4km (2mi) NNW of San Jacinto, California

b) 8km (5mi) N of Hemet, California

c) 11km (7mi) NW of Valle Vista, California

d) 26km (16mi) ESE of Moreno Valley, California

e) 41km (25mi) ESE of Riverside, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.9 ml	± 0.3
Location	33.817°N 116.978°W	± 0.2 km
Depth	15.3 km	± 0.5
Number of Phase Applied1	118
Minimum Distance2	1.34 km (0.01°)
Travel Time Residual3	0.19 sec
Azimuthal Gap4	21°

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 3.6 Earthquake of Concord, California 2015-05-03

2015-05-03 22:13:19 (UTC) :South-West of Concord, California

earthquake monitor, California earthquake, earthquake realtime

Magnitude : 3.6

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-03 22:13:19 (UTC)

Earthquake data:

Location : Position of Epicenter 

37.967°N 122.043°W

Depth : Depth of starting Rupture 

13.2 km

Region : Concord, California

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

a) 1km (1mi) SW of Concord, California

b) 2km (1mi) NE of Pleasant Hill, California

c) 6km (4mi) NNE of Walnut Creek, California

d) 9km (6mi) SE of Martinez, California

e) 83km (52mi) SW of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.6 mw	± 0.1
Location	37.967°N 122.043°W	± 0.1 km
Depth	13.2 km	± 0.2
Number of Phase Applied1	279
Minimum Distance2	1.49 km (0.01°)
Travel Time Residual3	0.22 sec
Azimuthal Gap4	30°

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 3.4 Earthquake of Carson, California 2015-04-30

2015-04-30 14:01:15 (UTC) :North-East of Carson, California

earthquake monitor, California earthquake, earthquake realtime

Magnitude : 3.4

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-30 14:01:15 (UTC)

Earthquake data:

Location : Position of Epicenter 

33.853°N 118.249°W

Depth : Depth of starting Rupture 

14.6 km

Region : Carson, California

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

a) 4km (2mi) NE of Carson, California

b) 5km (3mi) SSW of Compton, California

c) 7km (4mi) SE of Gardena, California

d) 7km (4mi) S of Willowbrook, California

e) 9km (6mi) ENE of Torrance, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.4 ml	± 0.1
Location	33.853°N 118.249°W	± 0.2 km
Depth	14.6 km	± 0.3
Number of Phase Applied1	240
Minimum Distance2	2.64 km (0.02°)
Travel Time Residual3	0.32 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 2.7 Earthquake of Independence, California 2015-04-09

2015-04-09 01:54:05 (UTC) :West-SouthWest of Independence, California

earthquake monitor,California earthquake, earthquake realtime

Magnitude : 2.7

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-09 01:54:05 (UTC)

Earthquake data:

Location : Position of Epicenter 

36.729°N 118.493°W

Depth : Depth of starting Rupture 

18.2 km

Region : Independence, California

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

a) 28km (17mi) WSW of Independence, California

b) 41km (25mi) WNW of Lone Pine, California

c) 49km (30mi) NE of Three Rivers, California

d) 52km (32mi) SSW of Big Pine, California

e) 71km (44mi) S of Bishop, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.7 ml	± 0.2
Location	36.729°N 118.493°W	± 0.3 km
Depth	18.2 km	± 0.9
Number of Phase Applied1	43
Minimum Distance2	43.08 km (0.39°)
Travel Time Residual3	0.22 sec
Azimuthal Gap4	105°

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)