Earthquake with magnitude of ML 2.4 on date 04-12-2007 and time 14:49:19 (UTC) in region 2 km NW Frugarolo (AL)

A magnitude ML 2.4 earthquake occured in region: 2 km NW Frugarolo (AL), on

  • 04-12-2007 14:49:19 (UTC)
  • 04-12-2007 15:49:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8510, 8.6590 at 37 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
Frugarolo AL 2 1968 1968
Casal Cermelli AL 3 1234 3202
Bosco Marengo AL 3 2457 5659
Castellazzo Bormida AL 6 4570 10229
Fresonara AL 8 731 10960
Alessandria AL 8 93943 104903
Castelspina AL 8 416 105319
Borgoratto Alessandrino AL 10 584 105903
Basaluzzo AL 10 2087 107990
Sezzadio AL 10 1246 109236
Gamalero AL 10 844 110080
Frascaro AL 10 440 110520
Pietra Marazzi AL 11 904 111424
Predosa AL 11 2048 113472
Montecastello AL 11 321 113793
Pozzolo Formigaro AL 12 4775 118568
Pasturana AL 13 1318 119886
Oviglio AL 14 1265 121151
Piovera AL 14 851 122002
Capriata d'Orba AL 14 1904 123906
Francavilla Bisio AL 14 531 124437
Solero AL 14 1645 126082
Novi Ligure AL 14 28154 154236
Castelnuovo Bormida AL 15 694 154930
Rivarone AL 15 381 155311
Carentino AL 15 340 155651
Cassine AL 15 2961 158612
Pecetto di Valenza AL 16 1267 159879
Villalvernia AL 16 955 160834
Castelletto Monferrato AL 16 1537 162371
Bergamasco AL 16 744 163115
Tassarolo AL 16 672 163787
Tortona AL 17 27437 191224
Carbonara Scrivia AL 17 1122 192346
Spineto Scrivia AL 17 337 192683
Quargnento AL 17 1398 194081
Maranzana AT 18 277 194358
San Salvatore Monferrato AL 18 4299 198657
Rivalta Bormida AL 18 1446 200103
Villaromagnano AL 18 715 200818
Bassignana AL 18 1709 202527
Silvano d'Orba AL 18 1988 204515
Felizzano AL 18 2344 206859
Valenza AL 18 19178 226037
Bruno AT 18 321 226358
Alluvioni CambiĆ² AL 19 912 227270
Paderna AL 19 220 227490
Castelletto d'Orba AL 19 2047 229537
Mombaruzzo AT 19 1117 230654
Cassano Spinola AL 19 1731 232385
San Cristoforo AL 19 608 232993
Sale AL 19 4172 237165
Montaldo Bormida AL 19 664 237829
Orsara Bormida AL 19 424 238253
Carpeneto AL 20 977 239230
Carezzano AL 20 431 239661
Ricaldone AL 20 684 240345
Quaranti AT 20 183 240528
Masio AL 20 1420 241948
Gavazzana AL 20 180 242128
Rocca Grimalda AL 20 1512 243640
Strevi AL 20 2019 245659

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of Alessandria (93943 inhabitants)
36 Km E of Asti (76202 inhabitants)
53 Km NW of Genova (586655 inhabitants)
54 Km SW of Pavia (72576 inhabitants)
54 Km SW of Vigevano (63310 inhabitants)
62 Km N of Savona (61345 inhabitants)
66 Km S of Novara (104380 inhabitants)
78 Km E of Moncalieri (57294 inhabitants)
80 Km SW of Milano (1345851 inhabitants)
81 Km E of Torino (890529 inhabitants)
81 Km SW of Rho (50434 inhabitants)
85 Km W of Piacenza (102191 inhabitants)
85 Km S of Legnano (60262 inhabitants)
87 Km S of Busto Arsizio (83106 inhabitants)
89 Km SW of Sesto San Giovanni (81608 inhabitants)
90 Km SW of Cinisello Balsamo (75078 inhabitants)
91 Km S of Gallarate (53343 inhabitants)
95 Km SW of Monza (122671 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 2.0
ML 2.4
2007-12-04
14:49:19
44.851 8.659 37 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 664579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-12-04 14:49:19 ± 0.24
Latitude 44.8510 ± 0.0216
Longitude 8.6590 ± 0.0279
Depth (km) 37 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 664579

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2455
Semi-minor axis of confidence ellipse (meter) 1891
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 3255.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.91
Epicentral distance of station closest to the epicenter (degree) 0.32016
Epicentral distance of station farthest from the epicenter (degree) 1.08728
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 664579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:36:51

Md:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations
Type of magnitude Md
Reference to an origin 664579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:36:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DOI.HHZ. 2007-12-04T14:49:53.53 0.6 undecidable manual Sg 251 117.8931 1.412 27
GU.SC2M.HHE. 2007-12-04T14:49:45.53 0.3 undecidable manual Sg 125 85.0482 0.494 63
IV.DOI.HHZ. 2007-12-04T14:49:39.12 0.1 undecidable manual Pg 251 117.8931 0.862 69
IV.IMI.SHZ. 2007-12-04T14:49:37.98 0.1 undecidable manual Pg 210 120.6903 -0.633 75
IV.VAI.SHZ. 2007-12-04T14:49:37.22 0.1 undecidable manual Pg 4 113.0979 -0.441 80
IV.ORO.SHZ. 2007-12-04T14:49:36.21 0.1 undecidable manual Pg 329 101.0211 0.048 90
GU.TRAV.HHE. 2007-12-04T14:49:34.81 0.3 undecidable manual Pg 316 102.3198 -1.517 36
GU.SC2M.HHE. 2007-12-04T14:49:34.20 0.1 undecidable manual Pg 125 85.0482 0.029 93
GU.PCP.HHZ. 2007-12-04T14:49:33.80 0.1 undecidable manual Sg 195 35.5422 -0.355 97
IV.FIN.SHZ. 2007-12-04T14:49:32.99 0.1 undecidable manual Pg 207 79.7646 -0.521 85
IV.MONC.HHE. 2007-12-04T14:49:32.31 0.1 undecidable manual Pg 294 62.5929 0.963 74
IV.BOB.HHE. 2007-12-04T14:49:31.75 0.3 undecidable manual Pg 98 62.7927 0.379 68
GU.PCP.HHZ. 2007-12-04T14:49:27.72 0.1 undecidable manual Pg 195 35.5422 -0.169 100
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