4/28/2015 — 6.2M earthquake DEEP in the Asthenosphere — West Pacific Earthquake Alert / Watch

This is troubling to see.   A 6.2 magnitude earthquake has struck deep in the Asthenosphere below Fiji in the West Pacific.

This earthquake occurred at at depth of 579km / 359miles.

6.2m deep asthenosphere april 28 2015


You might be asking “why is it troubling to see a deep 6.2M in the West Pacific”?

The answer resides in what follows the deep movement.

Each time we see deep 4.0M+ earthquakes, we usually seen shallow movement nearby in the 6.0M range.  Each time we see deep 5.0M earthquakes, we usually see shallow movement nearby in the 7.0M range.

In the past , each time we see deep earthquakes in the 6.0M+ range, we usually see shallow 8.0M+ events nearby the deep epicenters.

I hope , in this instance, that the past events will not dictate this events future.

Above: Graphic showing the approximate layers of the Earth, the 350 mile depth zone is located in the Asthenosphere (semi-melted magma area below the lithosphere crust)


Just in case things don’t calm down, PLEASE KEEP WATCH in the named areas!!!!!!!!



Yesterday, April 28 2015, I issued this warning graphic to accompany the earthquake forecast I issued for the area on April 24.  There are still 3+ days left in the forecast watch zones.

japan earthquake watch
April 28, 2015 – Four zones still under watch for the next 4 days due to deep movement in the Asthenosphere

For a brushup on the zones to watch, you can see the latest earthquake forecast video:


Information from the USGS on this current 6.2M earthquake:

M6.2 – 29km S of Ndoi Island, Fiji


Magnitude / uncertainty 6.2 mwb± 0.0
Location / uncertainty 20.916°S 178.656°W± 9.4 km
Depth / uncertainty 579.2 km± 4.2
Origin Time
Number of Stations
Number of Phases 186
Minimum Distance 492.92 km (4.43°)
Travel Time Residual 1.08 sec
Azimuthal Gap 28°
FE Region Fiji region (181)