Magnitude 5.0 Earthquake of Puerto El Triunfo, El Salvador 2015-04-29

2015-04-29 11:22:42 (UTC) :South-SouthWest of Puerto El Triunfo, El Salvador

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Magnitude : 5.0

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-29 11:22:42 (UTC)

Earthquake data:

Location : Position of Epicenter 

11.912°N 88.927°W

Depth : Depth of starting Rupture 

31.4 km

Region : Puerto El Triunfo, El Salvador

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

a) 157km (98mi) SSW of Puerto El Triunfo, El Salvador

b) 167km (104mi) SSW of Usulutan, El Salvador

c) 174km (108mi) SSW of San Rafael Oriente, El Salvador

d) 175km (109mi) S of Zacatecoluca, El Salvador

e) 198km (123mi) S of San Salvador, El Salvador

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.0 mb	± 0.0
Location	11.912°N 88.927°W	± 5.2 km
Depth	31.4 km	± 5.2
Number of Phase Applied1	95
Minimum Distance2	199.15 km (1.79°)
Travel Time Residual3	1.05 sec
Azimuthal Gap4	116°

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 Acajutla, El Salvador 2015-04-08

2015-04-08 15:44:48 (UTC) :South-SouthEast of Acajutla, El Salvador

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Magnitude : 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-08 15:44:48 (UTC)

Earthquake data:

Location : Position of Epicenter 

13.258°N 89.711°W

Depth : Depth of starting Rupture 

60.4 km

Region : Acajutla, El Salvador

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

a) 39km (24mi) SSE of Acajutla, El Salvador

b) 49km (30mi) WSW of La Libertad, El Salvador

c) 50km (31mi) S of Sonsonate, El Salvador

d) 52km (32mi) S of Sonzacate, El Salvador

e) 74km (46mi) SW of San Salvador, El Salvador

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 mb	± 0.0
Location	13.258°N 89.711°W	± 6.1 km
Depth	60.4 km	± 4.4
Number of Phase Applied1	135
Minimum Distance2	70.24 km (0.63°)
Travel Time Residual3	1.11 sec
Azimuthal Gap4	67°

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 4.3 Earthquake of OFFSHORE EL SALVADOR 2013 March 25

2013 March 25 23:42:02 UTC : OFFSHORE EL SALVADOR EARTHQUAKE

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Magnitude: 4.3

Date-Time: Monday, March 25, 2013 at 23:42:02 UTC

Monday, March 25, 2013 at 05:42:02 PM at epicenter

Earthquake data:

Location : 13.464°N, 89.973°W

Depth : 90.1 km (56.0 miles)

Region : OFFSHORE EL SALVADOR

Distances:

a) 21 km (13 miles) SW of Acajutla, El Salvador

b) 39 km (24 miles) SW of Sonsonate, El Salvador

c) 41 km (25 miles) SW of Sonzacate, El Salvador

d) 44 km (27 miles) SW of Izalco, El Salvador

Location Uncertainty: horizontal +/- 16.3 km (10.1 miles); depth +/- 15.6 km (9.7 miles)

Parameters: NST= 23, Nph= 23, Dmin=267.2 km, Rmss=1.17 sec, Gp=173°, M-type=body wave magnitude (Mb), Version=6

Magnitude 7.4 Earthquake OFF THE COAST OF EL SALVADOR 2012 August 27

2012 August 27 04:37:22 UTC: OFF THE COAST OF EL SALVADOR EARTHQUAKE

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Magnitude: 7.4

Date-Time: Monday, August 27, 2012 at 04:37:22 UTC

Sunday, August 26, 2012 at 10:37:22 PM at epicenter

Earthquake data:

Location : 12.279°N, 88.530°W

Depth : 52.9 km (32.9 miles)

Region : OFF THE COAST OF EL SALVADOR

Distances:

a)125 km (78 miles) S (184°) from Usulután, Usulután, El Salvador

b)144 km (90 miles) SSW (195°) from San Miguel, San Miguel, El Salvador

c)145 km (90 miles) SSW (211°) from La Unión, La Unión, El Salvador

d)175 km (109 miles) SSE (157°) from SAN SALVADOR, El Salvador

Location Uncertainty:horizontal +/- 16.5 km (10.3 miles); depth +/- 8.8 km (5.5 miles)

Parameters: NST= 23, Nph=0, Dmin=0 km, Rmss=0 sec, Gp=176°, M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B

Magnitude 4.3 Earthquake of OFFSHORE EL SALVADOR 2012 February 04

2012 February 04 11:06:45 UTC: OFFSHORE EL SALVADOR

Magnitude: 4.3

Date-Time : Saturday, February 04, 2012 at 11:06:45 UTC
Saturday, February 04, 2012 at 05:06:45 AM at epicenter

Location : 13.319°N, 89.144°W

Depth : 81.2 km (50.5 miles)

Region : OFFSHORE EL SALVADOR

Distances:

a) 106 km (65 miles) ENE of Korla, Xinjiang, China

b) 175 km (108 miles) WSW of Turpan, Xinjiang, China

c) 186 km (115 miles) S of Urumqi, Xinjiang, China

d) 2444 km (1518 miles) WNW of BEIJING, Beijing, China

Location Uncertainty: horizontal +/- 17.8 km (11.1 miles); depth +/- 8.9 km (5.5 miles)

Parameters : NST= 58, Nph= 59, Dmin=653.4 km, Rmss=0.95 sec, Gp= 50°, M-type=body wave magnitude (Mb), Version=4