Earthquake with magnitude of ML 2.0 on date 23-12-2005 and time 14:24:40 (Italy) in region 2 km NE Novi Ligure (AL)

A magnitude ML 2.0 earthquake occured in region: 2 km NE Novi Ligure (AL), on

  • 23-12-2005 13:24:40 (UTC)
  • 23-12-2005 14:24:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7750, 8.8120 at 12 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Novi Ligure AL 2 28154 28154
Pozzolo Formigaro AL 3 4775 32929
Cassano Spinola AL 4 1731 34660
Pasturana AL 6 1318 35978
Gavazzana AL 6 180 36158
Villalvernia AL 6 955 37113
Tassarolo AL 6 672 37785
Stazzano AL 7 2486 40271
Serravalle Scrivia AL 7 6128 46399
Francavilla Bisio AL 8 531 46930
Carezzano AL 8 431 47361
Sardigliano AL 8 406 47767
Paderna AL 8 220 47987
Basaluzzo AL 8 2087 50074
Sant'Agata Fossili AL 9 425 50499
Spineto Scrivia AL 9 337 50836
Vignole Borbera AL 10 2182 53018
Gavi AL 10 4614 57632
Carbonara Scrivia AL 10 1122 58754
Castellania AL 10 90 58844
Fresonara AL 10 731 59575
San Cristoforo AL 10 608 60183
Villaromagnano AL 11 715 60898
Costa Vescovato AL 11 335 61233
Capriata d'Orba AL 11 1904 63137
Arquata Scrivia AL 11 6409 69546
Borghetto di Borbera AL 12 1966 71512
Bosco Marengo AL 12 2457 73969
Cerreto Grue AL 12 323 74292
Parodi Ligure AL 12 715 75007
Predosa AL 12 2048 77055
Avolasca AL 13 294 77349
Frugarolo AL 13 1968 79317
Carrosio AL 13 510 79827
Castelletto d'Orba AL 13 2047 81874
Sarezzano AL 13 1171 83045
Montegioco AL 13 313 83358
Montaldeo AL 14 265 83623
Tortona AL 14 27437 111060
Bosio AL 14 1227 112287
Grondona AL 15 510 112797
Silvano d'Orba AL 15 1988 114785
Garbagna AL 15 696 115481
Mornese AL 16 737 116218
Berzano di Tortona AL 16 157 116375
Casal Cermelli AL 16 1234 117609
Casasco AL 17 129 117738
Montemarzino AL 17 341 118079
Casaleggio Boiro AL 17 372 118451
Viguzzolo AL 17 3148 121599
Lerma AL 17 869 122468
Rocca Grimalda AL 17 1512 123980
Voltaggio AL 17 738 124718
Volpeglino AL 18 148 124866
Castellar Guidobono AL 18 399 125265
Isola del Cantone GE 18 1540 126805
Castelspina AL 18 416 127221
Monleale AL 18 566 127787
Volpedo AL 19 1227 129014
Brignano-Frascata AL 19 456 129470
Tagliolo Monferrato AL 19 1581 131051
Sezzadio AL 19 1246 132297
Dernice AL 19 185 132482
Momperone AL 19 223 132705
Carpeneto AL 19 977 133682
Cantalupo Ligure AL 19 527 134209
Ovada AL 20 11477 145686

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SE of Alessandria (93943 inhabitants)
41 Km N of Genova (586655 inhabitants)
50 Km E of Asti (76202 inhabitants)
53 Km SW of Pavia (72576 inhabitants)
58 Km NE of Savona (61345 inhabitants)
61 Km S of Vigevano (63310 inhabitants)
76 Km W of Piacenza (102191 inhabitants)
76 Km S of Novara (104380 inhabitants)
83 Km SW of Milano (1345851 inhabitants)
86 Km S of Rho (50434 inhabitants)
91 Km SW of Sesto San Giovanni (81608 inhabitants)
92 Km S of Legnano (60262 inhabitants)
92 Km E of Moncalieri (57294 inhabitants)
93 Km SW of Cinisello Balsamo (75078 inhabitants)
94 Km S of Busto Arsizio (83106 inhabitants)
95 Km E of Torino (890529 inhabitants)
97 Km SW of Monza (122671 inhabitants)
99 Km S of Gallarate (53343 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.4
ML 2.0
2005-12-23
13:24:40
44.775 8.812 13 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 545729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-23 13:24:40 ± 0.57
Latitude 44.7750 ± 0.0486
Longitude 8.8120 ± 0.0291
Depth (km) 13 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 545729

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5789
Semi-minor axis of confidence ellipse (meter) 1000
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 5869.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.45146
Epicentral distance of station farthest from the epicenter (degree) 1.14574
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 545729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:28

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 545729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DOI.HHN. 2005-12-23T13:25:19.80 1.0 undecidable manual Sg 257 127.1727 -0.039 11
IV.IMI.SHZ. 2005-12-23T13:25:17.32 0.1 undecidable manual Sg 218 120.4905 -0.529 39
IV.FIN.SHZ. 2005-12-23T13:25:06.53 0.1 undecidable manual Sg 217 78.9654 1.016 35
IV.DOI.HHN. 2005-12-23T13:25:02.86 0.1 undecidable manual Pg 257 127.1727 0.454 80
IV.IMI.SHZ. 2005-12-23T13:25:01.22 0.1 undecidable manual Pg 218 120.4905 -0.069 88
IV.BOB.HHZ. 2005-12-23T13:24:57.22 0.1 undecidable manual Sg 91 50.1165 0.272 48
IV.FIN.SHZ. 2005-12-23T13:24:53.93 0.1 undecidable manual Pg 217 78.9654 -0.429 88
IV.BOB.HHZ. 2005-12-23T13:24:49.39 0.1 undecidable manual Pg 91 50.1165 -0.154 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download