Archive | March 17, 2015

MAGNITUDE 6.2 MOLUCCA SEA

http://earthquake.usgs.gov/earthquakes/eventpage/us10001nab#general_summary

Subject To Change

Depth: 45 km

Distances: 134km (83mi) NW of Kota Ternate, Indonesia
136km (85mi) NW of Ternate, Indonesia
151km (94mi) E of Bitung, Indonesia
165km (103mi) W of Tobelo, Indonesia
1083km (673mi) SW of Koror Town, Palau

Map showing extent (w,s,e,n) = (121.5231, -3.3422, 131.5231, 6.6578)

SEVERE ALERT GEOMAGNETIC STORM IN PROGRESS

***SEVERE ALERT***

GEOMAGNETIC STORM IN PROGRESS
Kp Index is at level 8
Scale of G4

Power systems: Possible widespread voltage control problems and some protective systems will mistakenly trip out key assets from the grid.
Spacecraft operations: May experience surface charging and tracking problems, corrections may be needed for orientation problems.
Other systems:  Induced pipeline currents affect preventive measures, HF radio propagation sporadic, satellite navigation degraded for hours, low-frequency radio navigation disrupted, and aurora has been seen as low as Alabama and northern California (typically 45° geomagnetic lat.).

Kp Index NOAA 17.03.15 18.50 hrs UTC

GEOMAGNETIC STORM IN PROGRESS Kp Index is at level 5

***ALERT***

GEOMAGNETIC STORM IN PROGRESS
Kp Index is at level 5
Scale of G1

Minor

Power systems: weak power grid fluctuations can occur.
Spacecraft operations: minor impact on satellite operations possible.
Other systems: migratory animals are affected at this and higher levels.

Kp Index NOAA 17.03.15 07.25 hrs UTC