Archive for June, 2013

June 29, 2013

Forzone – Minucciano , Massa/Lucca/Carrara, Italy 21/06/2013, 5.2ML and aftershocks

An earthquake of magnitude (ML) 5.2 occurred at 10:33:57 UTC July 21st, 2013 at a depth of 5.1 km. The earthquake was located by the National Seismic Network at less than 1km SE of Forzone, between the provinces of Lucca and Massa in the Apuan Alps. The towns closest to the epicenter are Minucciano (Lucca), Casola in Lunigiana (Massa), Fosdinovo (Massa).
The quake was felt across northern Italy from Bologna to Florence, the civil protection agency said, adding that no life-threatening injuries had been reported.
Three people were lightly injured by falling masonry during the quake, while one person suffered a heart attack and was hospitalized.
Damage to houses was limited to Tuscany and Emilia Romagna, while a historic bell tower in the small town of Regnano suffered a partial collapse.
In the 7 day period since the moderate sized quake there have been 1177 aftershocks, mostly in the magnitude 1-2 range.
Of the larger aftershocks there were 2 magnitude 4.0 quakes within the first 4 hours, one 1:38hrs after the main shock at 21/06/2013 12:12:39 located 1.25km NW of the main shock and 1.5km W of Forzone , and a second 3:49hrs after the main shock at 21/06/2013 14:23:22 located less than 1km NE of the mainshock.
The largest aftershock within the following 7 days was a magnitude 4.4 located less than 1km north of Minucciano at 52:27hrs (2 days) after the main shock.
The maps below show the sequence of aftershocks up to 7 days afterwards.

The data below is located with the stations of the INGV National Seismic Network
Date/Time (UTC): 21/06/2013 10:33:57
Main shock
Lat: 44.153°N Long: 10.135°E
Magnitude: 5.2 ML
Depth: 5.1 km
Location: Via Vittorio Veneto Collecchia, 69, 54013 Monzone Province of Massa and Carrara, Italy
Catalog Source: SISBAS-Istituto Nazionale di Geofisica e VulcanologiaOther Networks estimates of the event
Network, Mag, When, Lat, Long, Depth
GEOFON= 5.3Mw, 21/06/2013 10:33:57.0, 44.19, 10.11, 10
USGS= 5.1mb, 5.2Mw, 21/06/2013 10:33:59.0, 44.222, 10.113, 10.3
RASGS= 5.5mb, 21/06/2013 10:33:57.5, 44.24, 10.14, 10
EMSC= 5.3Mw, 21/06/2013 10:33:59.0, 44.19, 10.15, 10
LDEO= 5.6Ms, 21/06/2013 10:34:00.0, 44.25, 10.25, 33
GCMT= 5.4Mw,5.1Ms, 21/06/2013 10:34:01.3, 44.1, 10.05, 12
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GCMT MTS

gcmt moment tensor solution

32 Aftershocks at 2 hours

summary

mag<1= 0 , mag1= 5 , mag2= 19

mag3= 7 , mag4= 1 , mag5= 1
total= 33
total energy released= 986.063 TTNT
main shock energy released= 951.50 TTNT
total aftershocks energy released= 34.564 TTNT

VLC:Villacollemandina, Italy Webicorder

MEDNET Project station 20.36 km from the INGV epicenter location
VLC:Villacollemandina, Italy
click image for full size version, opens in new tab/window

The search area used to compile the data on this page is a rectangle = 44.376713, 9.94, 44.376713, 10.56, 43.960037, 10.56, 43.960037, 9.94, 44.376713, 9.94

more aftershocks

138 aftershocks 2-12hrs

summary

mag<1= 4 , mag1= 85 , mag2= 44

mag3= 4 , mag4= 1 , mag5= 0
total= 138
total energy released= 23.553 TTNT

171 cumulative 0-12hrs

summary

mag<1= 4 , mag1= 90 , mag2= 63

mag3= 11 , mag4= 1 , mag5= 1
total energy released= 1009.616 TTNT

12 hour updates

133 aftershocks 12-24hrs

summary

mag<1= 7 , mag1= 104 , mag2= 21

mag3= 1 , mag4= 0 , mag5= 0
total= 133
total energy released= 2.943 TTNT

304 cumulative 0-24hrs (1 day)

summary

mag<1= 11 , mag1= 194 , mag2= 84

mag3= 12 , mag4= 2 , mag5= 1
total energy released= 1012.559 TTNT

111 aftershocks 24-36hrs

summary

mag<1= 19 , mag1= 82 , mag2= 10

mag3= 0 , mag4= 0 , mag5= 0
total= 111
total energy released= 0.702 TTNT

415 cumulative 0-36hrs

summary

mag<1= 30 , mag1= 276 , mag2= 94

mag3= 12 , mag4= 2 , mag5= 1
total energy released= 1013.261 TTNT

99 aftershocks 36-48hrs (2nd day)

summary

mag<1= 15 , mag1= 79 , mag2= 5

mag3= 0 , mag4= 0 , mag5= 0
total= 99
total energy released= 0.314800 TTNT

514 cumulative 0-48hrs (2 days)

summary

mag<1= 45 , mag1= 355 , mag2= 99

mag3= 12 , mag4= 2 , mag5= 1
total energy released= 1013.576 TTNT

191 aftershocks 48-60hrs

summary

mag<1= 28 , mag1= 143 , mag2= 18

mag3= 1 , mag4= 1 , mag5= 0
total= 191
total energy released= 69.453 TTNT

705 cumulative 0-60hrs

summary

mag<1= 73 , mag1= 498 , mag2= 117

mag3= 13 , mag4= 3 , mag5= 1, total energy released= 1083.028 TTNT

95 aftershocks 60-72hrs (3rd day)

summary

mag<1= 11 , mag1= 79 , mag2= 4

mag3= 1 , mag4= 0 , mag5= 0
total= 95
total energy released= 0.991 TTNT

800 cumulative 0-72hrs (3 days)

summary

mag<1= 84 , mag1= 577 , mag2= 121

mag3= 14 , mag4= 3 , mag5= 1, total energy released= 1084.020 TTNT

.

24 hour updates

101 aftershocks 72-96hrs (4th day)

summary

mag<1= 20 , mag1= 79 , mag2= 2

mag3= 0 , mag4= 0 , mag5= 0
total= 101
total energy released= 0.294 TTNT

901 cumulative 0-96hrs (4 days)

summary

mag<1= 104 , mag1= 656 , mag2= 123

mag3= 14 , mag4= 3 , mag5= 1, total energy released= 1084.314 TTNT

121 aftershocks 96-120hrs (5th day)

summary

mag<1= 17 , mag1= 95 , mag2= 9

mag3= 0 , mag4= 0 , mag5= 0
total= 121
total energy released= 0.646 TTNT

1022 cumulative 0-120hrs (5 days)

summary

mag<1= 121 , mag1= 751 , mag2= 132

mag3= 14 , mag4= 3 , mag5= 1, total energy released= 1084.960 TTNT

104 aftershocks 120-144hrs (6th day)

summary

mag<1= 29 , mag1= 69 , mag2= 6

mag3= 0 , mag4= 0 , mag5= 0
total= 104
total energy released= 0.515 TTNT

1126 cumulative 0-144hrs (6 days)

summary

mag<1= 150 , mag1= 820 , mag2= 138

mag3= 14 , mag4= 3 , mag5= 1, total energy released= 1085.475 TTNT

84 aftershocks 144-168hrs (7th day)

summary

mag<1= 11 , mag1= 41 , mag2= 1

mag3= 0 , mag4= 0 , mag5= 0
total= 53
total energy released= 0.092 TTNT

1178 cumulative 0-168hrs (7 days)

summary

mag<1= 161 , mag1= 860 , mag2= 139

mag3= 14 , mag4= 3 , mag5= 1, total energy released= 1085.566 TTNT

Timeline Graphs

click on each image for larger version, opens in new tab/window

Aftershock graph 72 hrs (3 days)

72 hour Massa/Lucca/Carrara Aftershocks Graph

Aftershock graph 168 hrs (7 days)

7 days Massa/Lucca/Carrara Aftershocks Graph