Earthquake with magnitude of ML 1.7 on date 05-12-2022 and time 17:47:24 (Italy) in region 4 km W Pietra Marazzi (AL)

A magnitude ML 1.7 earthquake occured in region: 4 km W Pietra Marazzi (AL), on

  • 05-12-2022 16:47:24 (UTC)
  • 05-12-2022 17:47:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9580, 8.6220 at 35 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
Pietra Marazzi AL 4 904 904
Alessandria AL 5 93943 94847
Castelletto Monferrato AL 5 1537 96384
Montecastello AL 5 321 96705
Pecetto di Valenza AL 5 1267 97972
San Salvatore Monferrato AL 6 4299 102271
Valenza AL 7 19178 121449
Rivarone AL 8 381 121830
Piovera AL 9 851 122681
Solero AL 10 1645 124326
Bassignana AL 10 1709 126035
Quargnento AL 11 1398 127433
Frascarolo PV 11 1209 128642
Mirabello Monferrato AL 12 1374 130016
Lu AL 12 1122 131138
Torre Beretti e Castellaro PV 12 567 131705
Pomaro Monferrato AL 12 355 132060
Giarole AL 12 718 132778
Bozzole AL 12 319 133097
Suardi PV 13 624 133721
Alluvioni CambiĆ² AL 13 912 134633
Castellazzo Bormida AL 13 4570 139203
Casal Cermelli AL 13 1234 140437
Cuccaro Monferrato AL 14 340 140777
Gambarana PV 14 225 141002
Frugarolo AL 14 1968 142970
Occimiano AL 15 1319 144289
Conzano AL 15 979 145268
Borgoratto Alessandrino AL 15 584 145852
Oviglio AL 15 1265 147117
Sale AL 15 4172 151289
Fubine AL 15 1653 152942
Bosco Marengo AL 16 2457 155399
Felizzano AL 16 2344 157743
Frascaro AL 16 440 158183
Valmacca AL 16 1021 159204
Camagna Monferrato AL 16 528 159732
Ticineto AL 17 1371 161103
Borgo San Martino AL 17 1428 162531
Castelspina AL 17 416 162947
Gamalero AL 18 844 163791
Sartirana Lomellina PV 18 1657 165448
Pieve del Cairo PV 18 2063 167511
Quattordio AL 18 1637 169148
Mede PV 18 6693 175841
Carentino AL 19 340 176181
Vignale Monferrato AL 19 1006 177187
Guazzora AL 19 305 177492
Breme PV 19 800 178292
Masio AL 19 1420 179712
Sezzadio AL 19 1246 180958
Bergamasco AL 19 744 181702
Altavilla Monferrato AL 20 468 182170
Villa Biscossi PV 20 78 182248
Isola Sant'Antonio AL 20 717 182965
Terruggia AL 20 936 183901
Fresonara AL 20 731 184632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km N of Alessandria (93943 inhabitants)
33 Km E of Asti (76202 inhabitants)
44 Km SW of Vigevano (63310 inhabitants)
49 Km SW of Pavia (72576 inhabitants)
54 Km S of Novara (104380 inhabitants)
65 Km NW of Genova (586655 inhabitants)
72 Km SW of Rho (50434 inhabitants)
72 Km SW of Milano (1345851 inhabitants)
73 Km N of Savona (61345 inhabitants)
74 Km E of Moncalieri (57294 inhabitants)
75 Km SW of Legnano (60262 inhabitants)
75 Km E of Torino (890529 inhabitants)
76 Km S of Busto Arsizio (83106 inhabitants)
79 Km S of Gallarate (53343 inhabitants)
80 Km SW of Sesto San Giovanni (81608 inhabitants)
81 Km SW of Cinisello Balsamo (75078 inhabitants)
85 Km W of Piacenza (102191 inhabitants)
87 Km SW of Monza (122671 inhabitants)
97 Km S of Varese (80799 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 1.7 2022-12-05
16:47:24
44.9575 8.6217 35 2024-03-01
15:28:10
Bollettino Sismico Italiano INGV 112864581
Reviewed
Rev100
ML 2.0 2022-12-05
16:47:24
45.0058 8.6048 37 2022-12-05
17:28:25
Sala Sismica INGV-Roma 112536591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-05 16:47:24 ± 0.13
Latitude 44.9575 ± 0.0081
Longitude 8.6217 ± 0.0153
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 112864581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1186
Semi-minor axis of confidence ellipse (meter) 908
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.40744
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 112536591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-05 17:28:25

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 112864581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-28 09:21:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RF.GEPF.HHZ. 2022-12-05T16:49:19.76 3.0 undecidable manual Sg 6.59 0
IV.FAGN.HHZ. 2022-12-05T16:49:18.94 3.0 undecidable manual Sn -9.99 0
OT.TAR1.HHZ. 2022-12-05T16:49:15.94 3.0 undecidable manual Pn -9.77 0
IV.BARO.EHZ. 2022-12-05T16:49:07.26 3.0 undecidable manual Sn -9.72 0
IV.RIBO.EHZ.01 2022-12-05T16:48:52.68 3.0 undecidable manual Sg 0.64 0
IV.VCEL.EHZ. 2022-12-05T16:48:48.99 3.0 positive manual Pg 7.28 0
IV.PP3.EHZ. 2022-12-05T16:48:37.01 3.0 undecidable manual Pg 3.8 0
GU.FRON.EHZ. 2022-12-05T16:48:23.77 3.0 undecidable manual Sg 0
GU.FRON.EHZ. 2022-12-05T16:48:22.71 3.0 undecidable manual Pn 0
CH.MMK.HHN. 2022-12-05T16:48:01.44 0.6 undecidable manual S 337 131.5683 54 0.6 38
GU.ENR.HHZ. 2022-12-05T16:48:00.01 0.6 undecidable manual S 230 124.7862 54 0.65 37
GU.CIRO.HHZ. 2022-12-05T16:47:56.54 0.6 undecidable manual S 311 108.9132 54 0.58 40
GU.RORO.HHZ. 2022-12-05T16:47:55.08 0.6 undecidable manual S 205 103.5186 54 0.29 43
GU.GBOS.HHZ. 2022-12-05T16:47:54.22 0.3 undecidable manual S 218 100.6215 54 0.06 68
GU.TRAV.HHZ. 2022-12-05T16:47:51.77 0.6 undecidable manual S 312 92.0412 54 -0.54 42
GU.CANO.HHZ. 2022-12-05T16:47:51.73 0.6 undecidable manual S 200 88.5447 54 0.16 46
CH.DIX.HHN. 2022-12-05T16:47:49.31 0.6 undecidable manual P 323 156.2214 54 0.66 34
IV.BOB.HHE. 2022-12-05T16:47:47.05 0.6 undecidable manual S 108 68.2761 113 0.35 46
IV.QLNO.HHE. 2022-12-05T16:47:47.45 0.6 undecidable manual S 197 73.5708 111 -0.56 43
GU.STV.HHZ. 2022-12-05T16:47:46.12 0.1 undecidable manual P 233 129.2706 54 0.83 68
FR.SAOF.HHE.00 2022-12-05T16:47:46.16 1.0 undecidable manual P 219 136.9629 54 -0.1 21
CH.MMK.HHN. 2022-12-05T16:47:45.74 0.1 undecidable manual P 337 131.5683 54 0.16 84
GU.GORR.HHZ. 2022-12-05T16:47:45.41 0.6 undecidable manual S 126 65.5899 113 -0.63 41
GU.PZZ.HHE. 2022-12-05T16:47:45.20 0.6 undecidable manual P 248 128.7711 54 -0.04 43
GU.ENR.HHZ. 2022-12-05T16:47:44.64 0.3 undecidable manual P 230 124.7862 54 -0.09 65
GU.RNCA.HHE. 2022-12-05T16:47:44.78 0.6 undecidable manual S 154 59.8956 116 0.12 49
GU.LSD.HHN. 2022-12-05T16:47:44.31 0.3 undecidable manual P 296 128.871 54 -0.94 49
CH.MUGIO.HHE. 2022-12-05T16:47:43.53 0.6 undecidable manual P 17 111.8991 54 0.4 42
GU.MGRO.HHN. 2022-12-05T16:47:43.64 0.3 undecidable manual P 213 120.1908 54 -0.52 59
GU.GBOS.HHZ. 2022-12-05T16:47:42.24 0.3 undecidable manual P 218 100.6215 54 0.51 62
GU.CIRO.HHZ. 2022-12-05T16:47:42.11 0.1 undecidable manual P 311 108.9132 54 -0.66 76
GU.RORO.HHZ. 2022-12-05T16:47:42.66 0.1 undecidable manual P 205 103.5186 54 0.57 80
IV.VARE.HHE. 2022-12-05T16:47:42.75 0.6 undecidable manual P 6 101.6205 54 0.9 36
GU.RSP.HNN. 2022-12-05T16:47:41.27 0.3 undecidable manual P 282 108.4137 54 -1.43 40
GU.BHB.HHZ. 2022-12-05T16:47:41.61 0.1 undecidable manual P 263 107.6145 54 -0.99 67
GU.CANO.HHZ. 2022-12-05T16:47:40.44 1.0 undecidable manual P 200 88.5447 54 0.21 23
GU.PCP.HHZ. 2022-12-05T16:47:40.69 0.6 undecidable manual S 187 46.5201 123 -0.85 40
GU.TRAV.HHZ. 2022-12-05T16:47:40.01 0.1 undecidable manual P 312 92.0412 54 -0.64 79
IV.QLNO.HHE. 2022-12-05T16:47:38.25 0.1 undecidable manual P 197 73.5708 111 0.08 95
GU.RNCA.HHE. 2022-12-05T16:47:37.03 0.3 undecidable manual P 154 59.8956 116 0.79 60
GU.ROTM.HHZ. 2022-12-05T16:47:37.86 0.6 undecidable manual S 241 24.3534 142 0.75 42
IV.BOB.HHE. 2022-12-05T16:47:37.40 0.1 undecidable manual P 108 68.2761 113 -0.02 96
GU.GORR.HHZ. 2022-12-05T16:47:36.72 0.1 undecidable manual P 126 65.5899 113 -0.32 91
IV.MONC.HHN. 2022-12-05T16:47:36.30 0.3 undecidable manual P 284 55.9995 117 0.6 64
GU.PCP.HHZ. 2022-12-05T16:47:34.09 0.1 undecidable manual P 187 46.5201 123 -0.35 95
GU.ROTM.HHZ. 2022-12-05T16:47:32.15 0.1 positive manual P 241 24.3534 142 0.27 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ROTM.HHN. ML:2.2 0.000469028 0.1664 AML other m 2022-12-05T16:47:37.93
GU.ROTM.HHE. ML:1.9 0.0002551476 0.1152 AML other m 2022-12-05T16:47:38.43
GU.PCP.HHE. ML:1.5 0.00007115 1.28 AML other m 2022-12-05T16:47:40.05
GU.PCP.HHN. ML:1.5 0.00007135 0.6 AML other m 2022-12-05T16:47:41.39
GU.TRAV.HHN. ML:2.2 0.000175 0.26 AML other m 2022-12-05T16:47:53.06
GU.CANO.HHE. ML:2.3 0.000228 1.06 AML other m 2022-12-05T16:47:53.09
GU.TRAV.HHE. ML:2.2 0.000155 1.72 AML other m 2022-12-05T16:47:53.97
GU.CANO.HHN. ML:2.0 0.00010745000000000001 0.7 AML other m 2022-12-05T16:47:53.83
GU.GBOS.HHN. ML:1.4 0.0000273 1.06 AML other m 2022-12-05T16:47:55.40
GU.RORO.HHE. ML:1.6 0.000034149999999999997 0.58 AML other m 2022-12-05T16:47:56.95
GU.RORO.HHN. ML:1.6 0.000034149999999999997 1.24 AML other m 2022-12-05T16:47:56.34
GU.GBOS.HHE. ML:1.2 0.000017233617 0.3072 AML other m 2022-12-05T16:47:57.51
GU.CIRO.HHE. ML:1.8 0.00005285 0.18 AML other m 2022-12-05T16:47:57.47
GU.CIRO.HHN. ML:1.8 0.000053099999999999996 0.82 AML other m 2022-12-05T16:47:57.47
GU.BHB.HHN. ML:1.8 0.000052000000000000004 0.46 AML other m 2022-12-05T16:47:58.53
GU.BHB.HHE. ML:1.6 0.0000368 1.6 AML other m 2022-12-05T16:47:58.88
GU.ENR.HHE. ML:1.7 0.0000363 0.74 AML other m 2022-12-05T16:48:03.60
GU.STV.HHN. ML:1.4 0.00001571159 0.3584 AML other m 2022-12-05T16:48:03.77
GU.STV.HHE. ML:1.4 0.000016152075 0.4608 AML other m 2022-12-05T16:48:05.86
GU.ENR.HHN. ML:1.6 0.000024449999999999998 1.36 AML other m 2022-12-05T16:48:07.15
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
Waveforms Seismic signals in miniseed + resp format Download