Thursday, September 18, 2014

Magnitude 2.5 Earthquake of Redoubt Volcano, Alaska 2014-09-17

2014-09-17 20:40:19 UTC  : Redoubt Volcano, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude : 2.5

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-17 20:40:19 UTC

  1. 2014-09-17 12:40:19 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

  1. 60.115°N 152.713°W

Depth : Depth of starting Rupture 

104.2km (64.7mi)

Region : Redoubt Volcano, Alaska

Magnitude 2.5 Earthquake of Redoubt Volcano, Alaska 2014-09-17

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

a)  41km (25mi) S of Redoubt Volcano, Alaska

b)    196km (122mi) SW of Anchorage, Alaska

c)  230km (143mi) SW of Knik-Fairview, Alaska

d)  585km (364mi) SSW of Fairbanks, Alaska

  1. e)  972km (604mi) W of Whitehorse, Canada

Location Uncertainty: 
2.5 ml
60.115°N, 152.713°W
± 0.9 km
104.2 km
± 0.9 km
Number of Phase Applied1

Minimum Distance2

Travel Time Residual3
0.64 sec

Azimuthal Gap4

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)

No comments:

Post a Comment

Sample Text