He Martin,
I thing we could share the hit like two good friends, I said:
"Surely the NEIC in these days could have report a 4.8, but it will not be a true 4.8, it will be formed by A SEQUENCE OF SHOCKS around 3.0 3.5 and how better, near 4.0".
If you go to: http://www.ingrm.it/
(latest event of MEDNET), you'll find:
------------------------------------------------
The TRI station is managed by Universita' degli Studi di Trieste and Osservatorio Geofisico Sperimentale di Trieste.

000510_165209 44.2 11.9 35 SALASISMICA ***

000510_165202 44.7 11.5 35 INGNET ***

000510_055410 44.3 12.1 26 INGNET
000510_034601 44.3 12.0 28 INGNET
000509_175128 43.7 12.2 31 INGNET
000509_175119 44.2 12.0 35 SALASISMICA
000509_040915 44.3 12.1 27 INGNET
000509_025825 44.3 12.0 28 INGNET
000508_150634 44.3 12.0 26 INGNET
000508_142857 44.4 12.0 29 INGNET
000508_131624 44.2 11.9 27 INGNET
000508_124025 44.3 12.0 25 INGNET
000508_122956 44.3 12.0 37 SALASISMICA
000508_122900 44.2 12.0 40 MANUAL
000507_124941 44.2 11.9 38 INGNET
000507_124900 44.2 12.0 38 MANUAL
000507_071604 44.3 12.1 25 INGNET
000507_051052 44.3 12.0 26 INGNET
000506_220700 44.3 11.9 42 MANUAL

--------------------------------------------------

It would mean the 5.0 reported by NEIC is formed from the join of the first two events (3.5 + 3.5).
I'm seeing this is the praxis.

I use to base my calculations in accordance with the real waves of earth, I cannot to predict also the human accomodations, it would be truly extrasensorial.
In gamba! Antonio

• http://members.xoom.it/earthquakes