Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 06-05-2013 and time 07:26:30 (Italy) in region 5 km E Frugarolo (AL)

A magnitude ML 2.4 earthquake occured in region: 5 km E Frugarolo (AL), on

  • 06-05-2013 05:26:30 (UTC)
  • 06-05-2013 07:26:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8630, 8.7390 at 27 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.

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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 5 1968 1968
Bosco Marengo AL 7 2457 4425
Pozzolo Formigaro AL 8 4775 9200
Casal Cermelli AL 10 1234 10434
Fresonara AL 10 731 11165
Tortona AL 10 27437 38602
Montecastello AL 11 321 38923
Villalvernia AL 11 955 39878
Pietra Marazzi AL 11 904 40782
Carbonara Scrivia AL 11 1122 41904
Basaluzzo AL 11 2087 43991
Spineto Scrivia AL 11 337 44328
Piovera AL 11 851 45179
Alessandria AL 11 93943 139122
Villaromagnano AL 12 715 139837
Novi Ligure AL 12 28154 167991
Pasturana AL 12 1318 169309
Paderna AL 13 220 169529
Castellazzo Bormida AL 13 4570 174099
Rivarone AL 13 381 174480
Predosa AL 14 2048 176528
Castelspina AL 14 416 176944
Sarezzano AL 14 1171 178115
Francavilla Bisio AL 14 531 178646
Carezzano AL 14 431 179077
Cassano Spinola AL 15 1731 180808
Sale AL 15 4172 184980
Viguzzolo AL 15 3148 188128
Gavazzana AL 15 180 188308
Alluvioni Cambiò AL 15 912 189220
Tassarolo AL 15 672 189892
Pecetto di Valenza AL 15 1267 191159
Capriata d'Orba AL 15 1904 193063
Cerreto Grue AL 16 323 193386
Sezzadio AL 16 1246 194632
Bassignana AL 16 1709 196341
Costa Vescovato AL 16 335 196676
Borgoratto Alessandrino AL 16 584 197260
Gamalero AL 17 844 198104
Frascaro AL 17 440 198544
Sant'Agata Fossili AL 17 425 198969
Castellania AL 17 90 199059
Berzano di Tortona AL 17 157 199216
Montegioco AL 17 313 199529
Castellar Guidobono AL 17 399 199928
Castelnuovo Scrivia AL 17 5274 205202
Volpeglino AL 18 148 205350
Sardigliano AL 18 406 205756
Stazzano AL 18 2486 208242
Valenza AL 19 19178 227420
Serravalle Scrivia AL 19 6128 233548
Suardi PV 19 624 234172
Gambarana PV 19 225 234397
Castelletto Monferrato AL 19 1537 235934
Guazzora AL 19 305 236239
San Cristoforo AL 19 608 236847
Pontecurone AL 19 3723 240570
Avolasca AL 19 294 240864
Solero AL 19 1645 242509
Volpedo AL 20 1227 243736
Monleale AL 20 566 244302
Castelletto d'Orba AL 20 2047 246349
Oviglio AL 20 1265 247614
Gavi AL 20 4614 252228

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of Alessandria (93943 inhabitants)
42 Km E of Asti (76202 inhabitants)
49 Km SW of Pavia (72576 inhabitants)
52 Km S of Vigevano (63310 inhabitants)
52 Km NW of Genova (586655 inhabitants)
65 Km NE of Savona (61345 inhabitants)
66 Km S of Novara (104380 inhabitants)
76 Km SW of Milano (1345851 inhabitants)
78 Km SW of Rho (50434 inhabitants)
78 Km W of Piacenza (102191 inhabitants)
83 Km S of Legnano (60262 inhabitants)
84 Km S of Busto Arsizio (83106 inhabitants)
84 Km SW of Sesto San Giovanni (81608 inhabitants)
84 Km E of Moncalieri (57294 inhabitants)
86 Km SW of Cinisello Balsamo (75078 inhabitants)
86 Km E of Torino (890529 inhabitants)
89 Km S of Gallarate (53343 inhabitants)
91 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 		ML 2.4 2013-05-06
05:26:30		 44.8627 8.739 27 2015-01-20
11:25:44		 Bollettino Sismico Italiano INGV 4793131
Reviewed
Rev100 		ML 2.4 2013-05-06
05:26:30		 44.8788 8.7338 25 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3413941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-05-06 05:26:30 ± 0.08
Latitude 44.8627 ± 0.0054
Longitude 8.7390 ± 0.0076
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4793131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 599
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 122
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.27429
Epicentral distance of station farthest from the epicenter (degree) 2.05315
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 3413941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-05-06 05:38:08

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 4793131
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:26:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MMK.HHZ. 2013-05-06T05:27:10.90 0.3 undecidable manual S 336 144.9438 54 -0.09 62
FR.SAOF.HHZ. 2013-05-06T05:27:09.02 3.0 undecidable manual S 134.7651 0.07 0
GU.ENR.HHZ. 2013-05-06T05:27:07.20 0.3 undecidable manual S 236 125.874 54 0.31 62
IV.PLMA.HHZ. 2013-05-06T05:27:07.10 0.3 undecidable manual S 135 126.1737 54 0.14 64
CH.FUORN.HHZ. 2013-05-06T05:27:04.90 0.1 undecidable manual P 31 227.9052 54 0.55 48
CH.BNALP.HHZ. 2013-05-06T05:27:04.60 0.1 undecidable manual P 354 224.0091 54 0.73 46
GU.MGRO.HHZ. 2013-05-06T05:27:04.90 0.3 undecidable manual S 219 117.0939 99 0.01 67
GU.TRAV.HHZ. 2013-05-06T05:27:02.20 0.3 undecidable manual S 313 105.9162 100 0.26 66
SI.LUSI.HHZ. 2013-05-06T05:27:01.92 0.1 undecidable manual P 54 210.4338 54 -0.26 58
GU.GBOS.HHZ. 2013-05-06T05:26:59.80 0.3 undecidable manual S 226 99.0231 101 -0.33 65
MN.TUE.HHZ. 2013-05-06T05:26:59.50 0.1 undecidable manual P 15 184.6707 54 0.53 63
GU.RORO.HHZ. 2013-05-06T05:26:59.70 0.3 undecidable manual S 213 98.8233 101 -0.38 64
IV.MAGA.HHZ. 2013-05-06T05:26:58.80 0.1 undecidable manual P 55 178.7877 54 0.56 64
GU.MAIM.HHZ. 2013-05-06T05:26:58.06 0.1 undecidable manual P 127 174.2922 54 0.38 68
CH.FUSIO.HHZ. 2013-05-06T05:26:57.86 0.1 undecidable manual P 358 176.6898 54 -0.12 72
IV.MSSA.HHZ. 2013-05-06T05:26:56.30 0.3 undecidable manual S 134 86.3469 102 -0.52 64
GU.FINB.HHZ. 2013-05-06T05:26:56.20 0.3 undecidable manual S 203 82.7505 103 0.31 68
IV.MRGE.HHZ. 2013-05-06T05:26:56.48 0.1 undecidable manual P 308 165.1125 54 -0.05 77
MN.BNI.HHZ. 2013-05-06T05:26:56.17 0.1 undecidable manual P 278 163.1145 54 -0.12 77
GU.SARM.HHZ. 2013-05-06T05:26:55.46 0.1 undecidable manual P 119 151.4373 54 0.62 71
MN.VLC.HHZ. 2013-05-06T05:26:54.90 0.1 undecidable manual P 120 151.9368 54 0.01 82
GU.RRL.HHZ. 2013-05-06T05:26:54.97 0.1 undecidable manual P 273 153.2355 54 -0.09 81
FR.SAOF.HHZ. 2013-05-06T05:26:53.20 3.0 undecidable manual P 134.7651 0.3 0
GU.NEGI.HHZ. 2013-05-06T05:26:53.42 0.1 undecidable manual P 216 139.5603 54 0.06 84
CH.MMK.HHZ. 2013-05-06T05:26:53.94 0.1 undecidable manual P 336 144.9438 54 -0.08 83
GU.SATI.HHZ. 2013-05-06T05:26:52.23 0.1 undecidable manual P 329 131.2686 54 -0.09 85
GU.STV.HHZ. 2013-05-06T05:26:52.53 0.1 undecidable manual P 239 130.9689 54 0.24 83
GU.PZZ.HHZ. 2013-05-06T05:26:52.96 0.1 undecidable manual P 253 133.9659 54 0.3 81
GU.LSD.HHZ. 2013-05-06T05:26:52.58 0.1 undecidable manual P 298 141.9468 54 -1.07 60
IV.PLMA.HHZ. 2013-05-06T05:26:52.00 0.1 undecidable manual P 135 126.1737 54 0.31 82
IV.IMI.HHZ. 2013-05-06T05:26:51.35 0.1 undecidable manual P 213 125.0859 54 -0.21 85
IV.DOI.HHZ. 2013-05-06T05:26:51.13 0.1 undecidable manual P 252 124.2867 54 -0.32 83
IV.QLNO.HHZ. 2013-05-06T05:26:51.40 0.3 undecidable manual S 208 67.2771 106 -0.5 67
GU.ENR.HHZ. 2013-05-06T05:26:51.84 0.1 undecidable manual P 236 125.874 54 0.18 85
GU.MGRO.HHZ. 2013-05-06T05:26:50.51 0.1 undecidable manual P 219 117.0939 99 0.01 90
GU.CIRO.HHZ. 2013-05-06T05:26:50.12 0.1 undecidable manual P 312 122.8881 54 -1.16 60
CH.MUGIO.HHZ. 2013-05-06T05:26:49.86 0.1 undecidable manual P 11 119.7912 54 -1.04 64
IV.VARE.EHZ. 2013-05-06T05:26:49.51 0.1 undecidable manual P 1 111.4995 99 -0.14 88
GU.TRAV.HHZ. 2013-05-06T05:26:49.09 0.1 undecidable manual P 313 105.9162 100 0.29 87
GU.RSP.HHZ. 2013-05-06T05:26:49.41 0.6 undecidable manual P 286 119.8911 54 -1.49 25
GU.GBOS.HHZ. 2013-05-06T05:26:48.23 0.1 undecidable manual P 226 99.0231 101 0.48 84
GU.RORO.HHZ. 2013-05-06T05:26:47.88 0.1 undecidable manual P 213 98.8233 101 0.16 90
IV.MSSA.HHZ. 2013-05-06T05:26:45.96 0.1 undecidable manual P 134 86.3469 102 0.12 93
GU.FINB.HHZ. 2013-05-06T05:26:45.31 0.1 undecidable manual P 203 82.7505 103 0.01 96
GU.PCP.HHZ. 2013-05-06T05:26:44.40 0.3 undecidable manual S 203 38.8278 119 -0.44 71
GU.ROTM.HHZ. 2013-05-06T05:26:43.50 0.3 undecidable manual S 267 30.4473 127 0.54 71
IV.MONC.HHZ. 2013-05-06T05:26:43.49 0.1 undecidable manual P 290 67.8765 106 0.41 91
IV.QLNO.HHZ. 2013-05-06T05:26:42.78 0.1 undecidable manual P 208 67.2771 106 -0.22 95
IV.BOB.HHZ. 2013-05-06T05:26:41.15 0.1 undecidable manual P 100 56.7987 110 -0.3 95
GU.ROTM.HHZ. 2013-05-06T05:26:38.25 0.1 undecidable manual P 267 30.4473 127 0.41 98
GU.PCP.HHZ. 2013-05-06T05:26:38.73 0.1 positive manual P 203 38.8278 119 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BNALP.HHE. ML:2.0 0.0000212 1.16 AML other m 2013-05-06T05:27:38.94
CH.BNALP.HHN. ML:2.0 0.0000237 1.58 AML other m 2013-05-06T05:27:46.45
MN.BNI.HHN. ML:1.6 0.000018965 1.3 AML other m 2013-05-06T05:27:21.13
MN.BNI.HHE. ML:1.6 0.00001505 1.46 AML other m 2013-05-06T05:27:23.51
IV.BOB.HHN. ML:2.2 0.0002755 0.42 AML other m 2013-05-06T05:26:52.13
IV.BOB.HHE. ML:2.2 0.000334 0.3 AML other m 2013-05-06T05:26:57.82
GU.CIRO.HHN. ML:2.8 0.000483 0.68 AML other m 2013-05-06T05:27:07.29
GU.CIRO.HHE. ML:2.8 0.0004055 0.62 AML other m 2013-05-06T05:27:07.13
IV.CTI.HHE. ML:2.9 0.0001375 1.54 AML other m 2013-05-06T05:27:47.77
IV.CTI.HHN. ML:3.0 0.00014749999999999998 0.18 AML other m 2013-05-06T05:27:47.15
IV.DOI.HHE. ML:2.7 0.0003755 0.74 AML other m 2013-05-06T05:26:53.29
IV.DOI.HHN. ML:2.7 0.00034050000000000004 0.6 AML other m 2013-05-06T05:27:10.57
GU.ENR.HHN. ML:2.6 0.000266 0.34 AML other m 2013-05-06T05:27:08.73
GU.ENR.HHE. ML:2.7 0.000334 1.4 AML other m 2013-05-06T05:27:07.93
CH.FUSIO.HHE. ML:2.1 0.0000427 0.3 AML other m 2013-05-06T05:27:24.64
CH.FUSIO.HHN. ML:2.0 0.00003525 0.84 AML other m 2013-05-06T05:27:27.76
GU.GBOS.HHN. ML:2.2 0.0001565 0.86 AML other m 2013-05-06T05:27:02.18
GU.GBOS.HHE. ML:2.1 0.000122 0.6 AML other m 2013-05-06T05:27:01.62
SI.KOSI.HHE. ML:2.4 0.0000387 0.9 AML other m 2013-05-06T05:27:51.44
SI.KOSI.HHN. ML:2.4 0.00004145 0.86 AML other m 2013-05-06T05:27:52.41
GU.LSD.HHE. ML:2.3 0.00011330000000000002 0.58 AML other m 2013-05-06T05:27:12.90
GU.LSD.HHN. ML:2.2 0.00009655 0.28 AML other m 2013-05-06T05:27:15.11
SI.LUSI.HHE. ML:2.8 0.0001725 1.48 AML other m 2013-05-06T05:27:34.14
SI.LUSI.HHN. ML:3.1 0.0003095 0.18 AML other m 2013-05-06T05:27:34.64
IV.MAGA.HHE. ML:3.2 0.0005375 0.4 AML other m 2013-05-06T05:27:27.21
IV.MAGA.HHN. ML:3.0 0.0003285 0.62 AML other m 2013-05-06T05:27:26.31
GU.MAIM.HHE. ML:2.2 0.00005815 0.82 AML other m 2013-05-06T05:27:22.87
GU.MAIM.HHN. ML:2.2 0.00005795 0.74 AML other m 2013-05-06T05:27:20.64
GU.MGRO.HHN. ML:2.4 0.000188 0.32 AML other m 2013-05-06T05:27:07.36
GU.MGRO.HHE. ML:2.5 0.0002125 1.12 AML other m 2013-05-06T05:27:06.11
CH.MMK.HHE. ML:2.9 0.0004375 0.14 AML other m 2013-05-06T05:27:11.59
CH.MMK.HHN. ML:2.8 0.00030649999999999997 0.54 AML other m 2013-05-06T05:27:11.85
IV.MONC.HHN. ML:2.8 0.0009765 0.48 AML other m 2013-05-06T05:27:02.22
IV.MONC.HHE. ML:2.8 0.0010325 1.04 AML other m 2013-05-06T05:27:00.07
IV.MRGE.HHE. ML:2.4 0.00009510000000000001 0.58 AML other m 2013-05-06T05:27:21.04
IV.MRGE.HHN. ML:2.3 0.0000862 0.52 AML other m 2013-05-06T05:27:21.50
IV.MSSA.HHE. ML:2.3 0.0002395 0.62 AML other m 2013-05-06T05:26:58.20
IV.MSSA.HHN. ML:2.4 0.00031800000000000003 0.42 AML other m 2013-05-06T05:26:56.67
CH.MUGIO.HHE. ML:2.0 0.00008005000000000001 0.72 AML other m 2013-05-06T05:27:08.57
CH.MUGIO.HHN. ML:2.0 0.00007549999999999999 0.32 AML other m 2013-05-06T05:27:11.14
GU.NEGI.HHN. ML:2.4 0.0001325 0.92 AML other m 2013-05-06T05:27:12.87
GU.NEGI.HHE. ML:2.4 0.000157 0.28 AML other m 2013-05-06T05:27:11.80
RD.ORT2.BHE. ML:2.0 0.000022199999999999998 1.56 AML other m 2013-05-06T05:27:39.39
RD.ORT2.BHN. ML:1.9 0.0000181 1.56 AML other m 2013-05-06T05:27:53.45
GU.PCP.HHE. ML:2.2 0.00045749999999999995 0.32 AML other m 2013-05-06T05:26:44.66
GU.PCP.HHN. ML:2.4 0.000779 0.44 AML other m 2013-05-06T05:26:45.17
IV.PLMA.HHE. ML:2.3 0.0001275 1.44 AML other m 2013-05-06T05:27:09.50
IV.PLMA.HHN. ML:2.3 0.000128 0.24 AML other m 2013-05-06T05:27:07.27
CH.PLONS.HHN. ML:2.1 0.0000223 0.36 AML other m 2013-05-06T05:27:37.74
CH.PLONS.HHE. ML:2.1 0.000024050000000000002 0.68 AML other m 2013-05-06T05:27:51.62
IV.PRMA.HHN. ML:2.6 0.0002595 0.56 AML other m 2013-05-06T05:27:15.72
IV.PRMA.HHE. ML:2.5 0.00022399999999999997 1.58 AML other m 2013-05-06T05:27:16.47
GU.PZZ.HHN. ML:2.6 0.00024349999999999998 0.22 AML other m 2013-05-06T05:26:54.62
GU.PZZ.HHE. ML:2.6 0.0002175 0.22 AML other m 2013-05-06T05:26:54.64
IV.QLNO.HHN. ML:2.0 0.000161 1.44 AML other m 2013-05-06T05:26:51.91
IV.QLNO.HHE. ML:2.0 0.00017549999999999998 1.42 AML other m 2013-05-06T05:26:51.92
GU.RORO.HHN. ML:2.3 0.00018099999999999998 0.38 AML other m 2013-05-06T05:27:01.16
GU.RORO.HHE. ML:2.4 0.000217 0.5 AML other m 2013-05-06T05:27:01.33
GU.ROTM.HHN. ML:2.9 0.002675 0.28 AML other m 2013-05-06T05:26:44.83
GU.ROTM.HHE. ML:3.0 0.003805 1.44 AML other m 2013-05-06T05:26:44.84
GU.RRL.HHE. ML:1.9 0.00004035 0.58 AML other m 2013-05-06T05:27:21.12
GU.RRL.HHN. ML:1.9 0.0000363 0.82 AML other m 2013-05-06T05:27:18.47
GU.RSP.HHN. ML:2.4 0.0001635 0.88 AML other m 2013-05-06T05:27:08.47
GU.RSP.HHE. ML:2.4 0.0001655 1.38 AML other m 2013-05-06T05:27:09.15
FR.SAOF.HHN.00 ML:2.4 0.00014065 0.32 AML other m 2013-05-06T05:27:12.22
FR.SAOF.HHE.00 ML:2.4 0.0001375 0.76 AML other m 2013-05-06T05:27:11.38
GU.SARM.HHN. ML:2.4 0.0001365 0.42 AML other m 2013-05-06T05:27:18.78
GU.SARM.HHE. ML:2.3 0.00009515 1.32 AML other m 2013-05-06T05:27:18.77
GU.SATI.HHN. ML:2.8 0.0003505 0.68 AML other m 2013-05-06T05:27:09.57
GU.SATI.HHE. ML:2.8 0.00042249999999999997 0.24 AML other m 2013-05-06T05:27:10.00
GU.STV.HHN. ML:2.3 0.0001265 0.62 AML other m 2013-05-06T05:27:11.44
GU.STV.HHE. ML:2.4 0.00014350000000000002 0.46 AML other m 2013-05-06T05:27:12.21
GU.TRAV.HHE. ML:3.2 0.00126 0.28 AML other m 2013-05-06T05:27:02.74
GU.TRAV.HHN. ML:3.1 0.001122 0.34 AML other m 2013-05-06T05:27:02.55
MN.TUE.HHN. ML:2.1 0.000046399999999999996 1.58 AML other m 2013-05-06T05:27:34.28
MN.TUE.HHE. ML:2.3 0.000068 0.22 AML other m 2013-05-06T05:27:28.29
MN.VLC.HHN. ML:2.0 0.0000505 1.5 AML other m 2013-05-06T05:27:18.42
MN.VLC.HHE. ML:2.0 0.00005005 1.32 AML other m 2013-05-06T05:27:21.30
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
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