Magnitude 4.8 Earthquake of Sulangan, Philippines 2015-06-03

2015-06-03 21:18:41 (UTC) : East-SouthEast of Sulangan, Philippines

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Magnitude : 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-06-03 21:18:41 (UTC)

Earthquake data:

Location : Position of Epicenter 

10.707°N 126.223°E

Depth : Depth of starting Rupture 

35.0 km

Region : Sulangan, Philippines

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

a) 50km (31mi) ESE of Sulangan, Philippines

b) 65km (40mi) ESE of Guiuan, Philippines

c) 130km (81mi) NE of Surigao, Philippines

d) 131km (81mi) SE of Borongan, Philippines

e) 714km (444mi) SE of Manila, Philippines

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.1
Location	10.707°N 126.223°E	± 9.3 km
Depth	35.0 km	± 1.9
Number of Phase Applied1	77
Minimum Distance2	1105.95 km (9.94°)
Travel Time Residual3	0.54 sec
Azimuthal Gap4	98°

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 5.2 Earthquake of MINDANAO, PHILIPPINES 2012 January 29

2012 January 29 00:06:51 UTC: MINDANAO, PHILIPPINES

Magnitude: 5.2

Date-Time : Sunday, January 29, 2012 at 00:06:51 UTC
Sunday, January 29, 2012 at 08:06:51 AM at epicenter

Location : 5.952°N, 124.771°E

Depth : 384.4 km (238.9 miles

Region : MINDANAO, PHILIPPINES

Distances:

a) 48 km (29 miles) WSW of General Santos, Mindanao, Philippines

b) 152 km (94 miles) SSE of Cotabato, Mindanao, Philippines

c) 155 km (96 miles) SW of Davao, Mindanao, Philippines

d) 1043 km (648 miles) SSE of MANILA, Philippines

Location Uncertainty: horizontal +/- 13.5 km (8.4 miles); depth +/- 9.3 km (5.8 miles)

Parameters : NST=142, Nph=155, Dmin=152.5 km, Rmss=0.84 sec, Gp= 36°, M-type=body wave magnitude (Mb), Version=7

Magnitude 4.8 Earthquake of LEYTE, PHILIPPINES 2012 January 29

2012 January 29 06:01:48 UTC: LEYTE, PHILIPPINES

Magnitude: 4.8

Date-Time : Sunday, January 29, 2012 at 06:01:48 UTC
Sunday, January 29, 2012 at 02:01:48 PM at epicenter

Location : 10.095°N, 124.203°E

Depth : 580.1 km (360.5 miles)

Region : LEYTE, PHILIPPINES

Distances:

a) 39 km (24 miles) SE of Cebu, Cebu, Philippines

b) 62 km (38 miles) NE of Tagbilaran, Bohol, Philippines

c) 131 km (81 miles) NE of Dumaguete, Negros, Philippines

d) 609 km (378 miles) SE of MANILA, Philippines

Location Uncertainty: horizontal +/- 19.1 km (11.9 miles); depth +/- 12.2 km (7.6 miles)

Parameters : NST= 95, Nph= 96, Dmin=831.6 km, Rmss=0.91 sec, Gp= 83°, M-type=body wave magnitude (Mb), Version=6