Is the earthquake last Friday of the highest magnitude in the Canaries?

The National Seismic Catalog find that earthquakes were felt in Canary WITH A SUPERIOR to the earthquake of 27 CURRENT and can see that almost all of them are related to volcanic crisis. It is assumed that many of them WERE HIGHER MAGNITUDE but we have no data and not previously magnitude was calculated , there was no means to do so , and only know the strength of them based on the testimonies of the people who felt .

But just talking about earthquakes that have occurred in the Canaries after they started calculating the magnitude , JANUARY 1975 , we can say :

- The 27th earthquake in El Hierro is among the three earthquakes of magnitude greater than those recorded in the Canary Islands. The highest magnitude since January 1975 would be 5.2 that occurred at 3:30:37 of May 9, 1989 between the islands of Tenerife and Gran Canaria. Then we would have the 13:32:00 5.1 of the March 21, 1991 southwest of El Hierro and 5.1 of 17:46:03 Friday December 27, 2013 west of Frontera (El Hierro) . A fourth earthquake also hit 5 degrees and was recorded at 4:12:14 of January 12, 2006 north of the archipelago and near Madeira.

- The 5.1 earthquake last Friday December 27, 2013 is the largest magnitude of those recorded in the insular building one of the islands.

Now, considering that :

- Do not have the phases of the previously mentioned event but only the 27 events last Friday .
- We know that the type of scale used by IGN is mbLg for Friday December 27, 2013 and mb for the January 12, 2006 . But we do not know the type of magnitude of the events of 21 March 1991 or the May 9, 1989 .

I wonder if the earthquake last Friday December 27, 2013 will not be the largest magnitude of those recorded in the Canary Islands since the magnitude calculations are done in our archipelago .

And appreciate any response from whom such information is available and ideally we could all afford it .

- To view the Seismic Catalog Canarias ( IGN) : [link to www.ign.es]

- That same catalog with search tools AVCAN ( simpler) : [link to www.avcan.org]

(Fernando Raja ) [link to www.facebook.com (secure)]