A 6.9 magnitude earthquake hit near the coast of Central Peru. The earthquake hit at 01:54 PM local time (18:54 UTC). Initial USGS data stated that the epicenter was on the coastline approx. 50 km from Ica, a big Peruvian city. Lucky escape for Ica, as the Peruvian seismological agency IGP did locate the epicenter at 117 km from Ica.
83 people injured, 660 homeless and 132 houses collapsed… in depth report at earthquake-report
On the same day, 7 aftershocks were recorded from M4.7 to M.5.5. and today, October 29 again 4 aftershocks from M.4.7 to M4.9
Earthquakes M 6+
From September 14. 2011 to October 28, 2011
Within 45 days, 21 Earthquakes with a Magnitude 6 or higher !!
6.2 Alaska on Sept. 14 / 6.0 Cuba , 6.1 Nw. Zealand , 6.2 Japan , 7.3 Fiji all on Sept. 15 / 6.6 Japan , 6.0 Japan both on Sept.16 / 6.9 India on Sept. 18 / 6.4 Tonga on Sept. 22 / 6.2 Argentina on Oct. 6 / 6.1 Kermadec Islands on Oct. 7/6.8 Bali on Oct.13/6.7 Papua Nw. Guinea, 6.1 Amurskaya Russia both on Oct.14/6.3 Papua Nw. Guinea on Oct.18/ 6.1 Hokkaido Japan Region on Oct.21 / 7.4 Kermadec Islands Region on Oct. 21/7.2 and 6.0 both Eastern Turkey on Oct. 23/6.0 Fuji Islands on Oct.26/6.9 Coast of Central Peru on Oct.28/
Probably there were more recorded M6 + earthquakes, but as usual USGS downgrade the quakes, like the M.68 at Bali.
Indonesian authorities said the earthquake measured a magnitude of 6.8, but the US Geological Survey put the quake at magnitude 6.0
Our regular reader Rudyanto Bali promotion Center mailed to USGS with the inquiry why USGS downgrade quakes and this is the reply from USGS
Hello Rudyanto , bali promotion Center
This was the best available estimate of the earthquake’s size, at the time that the web page was created. Other magnitudes associated with web pages linked from here are those determined at various times following the earthquake with different types of seismic data. Although, given the data used, they are legitimate estimates of magnitude, they are not considered the official magnitude.
Lisa Wald, Geophysicist
Web Project Manager
USGS Earthquake Hazards Program
|Depth||23.9 km (14.9 miles)|
|Region||NEAR THE COAST OF CENTRAL PERU|
|Distances||51 km (31 miles) SSW of Ica, Peru
112 km (69 miles) S of Chincha Alta, Peru
201 km (124 miles) W of Puquio, Peru
288 km (178 miles) SSE of LIMA, Peru
|Location Uncertainty||horizontal +/- 16.5 km (10.3 miles); depth +/- 2.7 km (1.7 miles)|
|Parameters||NST=507, Nph=517, Dmin=293.9 km, Rmss=1.12 sec, Gp= 50°,
M-type=regional moment magnitude (Mw), Version=8