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The National Seismic Network since 1985

Today:

250+ BB stations

147 CGPS

130+ accelerometers

+ other associated networks

The data from

Earthquakes in Italy 2000-2012 100,000+ events located by The National Seismic Network since 2005 Big improvement in the seismic monitoring system since 2001

From http://iside.rm.ingv.it

Tohoku Earthquake M9.0, 11 March 2011, 05:46:20 GMT (~12’ from OT)"

mB=7.7! Mwp=8.2! T0=149! Mwpd=8.6!

http://early-est.rm.ingv.it"

Plot: 2011.03.11 05:58:29 UTCSoftware: v0.3.1 (2011.03.09)Agency: INGV

Earthquake Location · Td·T50Ex Level · mB · Mwp · T0 · Mwpd MonitorEarthquake details (automatic solutions):n pha !min° "ot origin−time−UTC lat° lon° errH depth errZ T50Ex [n] Td [n] TdT50 WL mB [n] Mwp [n] T0 [n] Mwpd [n]

1 89 3.8 2.1 2011.03.11−05:46:21 38.0 142.5 25 14 13 2.8 75 13.8 26 38.4 III 7.7 74 8.2 75 149 33 8.6 31

0

1

2

3

4

5

To>5

0s_E

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−60 −55 −50 −45 −40 −35 −30 −25 −20 −15 −10 −5 0Time before last data (min)

LUWI

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2011.03.11−04:57:17 UTC 2011.03.11−05:58:18#

To>50s_Exceedance

2 4 6 8 10count

2.8 [75]

0

5

10

15

20

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13.8 [26]

0

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10

15

20

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Td·T

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Td·T50Ex. Td·T50Ex = 38.4

3456789

mB

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7.7 [74]

3456789

Mw

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2 4 6 8 10Mwp count

8.2 [75]

0

50

100

150

200

250

T0

2 4 6 8 10T0 count

149 [33]

456789

10

Mw

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2 4 6 8 10Mwpd count

8.6 [31]

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80˚

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110˚

120˚

130˚

140˚ 150˚

160˚

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