Earthquake with magnitude of ML 1.9 on date 06-07-2022 and time 18:45:36 (Italy) in region 2 km S Bassignana (AL)

A magnitude ML 1.9 earthquake occured in region: 2 km S Bassignana (AL), on

  • 06-07-2022 16:45:36 (UTC)
  • 06-07-2022 18:45:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9900, 8.7420 at 50 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Bassignana AL 2 1709 1709
Rivarone AL 2 381 2090
Alluvioni Cambiò AL 3 912 3002
Piovera AL 3 851 3853
Suardi PV 5 624 4477
Gambarana PV 5 225 4702
Sale AL 5 4172 8874
Pecetto di Valenza AL 6 1267 10141
Montecastello AL 6 321 10462
Pietra Marazzi AL 8 904 11366
Frascarolo PV 8 1209 12575
Valenza AL 8 19178 31753
Pieve del Cairo PV 8 2063 33816
Guazzora AL 9 305 34121
Torre Beretti e Castellaro PV 10 567 34688
Isola Sant'Antonio AL 10 717 35405
Castelnuovo Scrivia AL 11 5274 40679
Mezzana Bigli PV 12 1098 41777
Alzano Scrivia AL 12 377 42154
Villa Biscossi PV 12 78 42232
Mede PV 12 6693 48925
Molino dei Torti AL 13 605 49530
Alessandria AL 13 93943 143473
Galliavola PV 14 211 143684
San Salvatore Monferrato AL 14 4299 147983
Castelletto Monferrato AL 14 1537 149520
Bozzole AL 14 319 149839
Pomaro Monferrato AL 14 355 150194
Tortona AL 14 27437 177631
Cornale e Bastida PV 15 867 178498
Casei Gerola PV 15 2500 180998
Sartirana Lomellina PV 15 1657 182655
Lomello PV 15 2206 184861
Pontecurone AL 16 3723 188584
Giarole AL 16 718 189302
Semiana PV 17 231 189533
Ferrera Erbognone PV 17 1189 190722
Viguzzolo AL 17 3148 193870
Silvano Pietra PV 17 672 194542
Frugarolo AL 17 1968 196510
Valmacca AL 18 1021 197531
Mirabello Monferrato AL 18 1374 198905
Breme PV 18 800 199705
Sannazzaro de' Burgondi PV 18 5515 205220
Valle Lomellina PV 19 2197 207417
Carbonara Scrivia AL 19 1122 208539
Castellar Guidobono AL 19 399 208938
Ticineto AL 19 1371 210309
Villaromagnano AL 19 715 211024
Bosco Marengo AL 19 2457 213481
Sarezzano AL 19 1171 214652
Casal Cermelli AL 19 1234 215886
Ottobiano PV 19 1090 216976
Velezzo Lomellina PV 19 95 217071
Spineto Scrivia AL 20 337 217408
Corana PV 20 812 218220
Solero AL 20 1645 219865

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Alessandria (93943 inhabitants)
38 Km S of Vigevano (63310 inhabitants)
40 Km SW of Pavia (72576 inhabitants)
43 Km E of Asti (76202 inhabitants)
52 Km S of Novara (104380 inhabitants)
64 Km SW of Milano (1345851 inhabitants)
64 Km SW of Rho (50434 inhabitants)
66 Km N of Genova (586655 inhabitants)
69 Km S of Legnano (60262 inhabitants)
70 Km S of Busto Arsizio (83106 inhabitants)
72 Km SW of Sesto San Giovanni (81608 inhabitants)
73 Km SW of Cinisello Balsamo (75078 inhabitants)
75 Km S of Gallarate (53343 inhabitants)
75 Km W of Piacenza (102191 inhabitants)
78 Km SW of Monza (122671 inhabitants)
79 Km N of Savona (61345 inhabitants)
83 Km E of Moncalieri (57294 inhabitants)
84 Km E of Torino (890529 inhabitants)
92 Km S of Varese (80799 inhabitants)
95 Km SW of Como (84495 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.9 2022-07-06
16:45:36
44.9902 8.7418 50 2022-07-06
17:01:30
Sala Sismica INGV-Roma 106886081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-06 16:45:36 ± 0.12
Latitude 44.9902 ± 0.0081
Longitude 8.7418 ± 0.0114
Depth (km) 50 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 106886081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 878
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.53964
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 34
Type of magnitude ML
Reference to an origin 106886081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-06 17:01:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAMP.HHZ. 2022-07-06T16:47:30.93 3.0 undecidable manual Sn 4.34 0
OX.ACOM.HHZ. 2022-07-06T16:47:25.01 3.0 undecidable manual Sn 10.6 0
IV.GUMA.HHZ. 2022-07-06T16:47:25.13 3.0 undecidable manual Sn 6.93 0
IV.PZUN.HHZ. 2022-07-06T16:47:15.00 3.0 positive manual Pn 0.89 0
IV.INTR.HHZ. 2022-07-06T16:47:08.15 3.0 undecidable manual Pg 21.299999 0
IV.MGAB.HNZ. 2022-07-06T16:47:00.41 3.0 undecidable manual Sn -2.24 0
IV.CRND.HNZ. 2022-07-06T16:46:59.67 3.0 undecidable manual Sg 15.25 0
IV.SAMA.EHZ. 2022-07-06T16:46:53.19 3.0 undecidable manual Pg 13.7 0
OX.AGOR.HHZ. 2022-07-06T16:46:52.31 3.0 undecidable manual Sn 3.12 0
IV.RUFI.EHZ. 2022-07-06T16:46:50.37 3.0 undecidable manual Sg 9.76 0
IV.BRSN.HNZ. 2022-07-06T16:46:46.88 3.0 undecidable manual Sn 1.53 0
IV.FRON.EHZ. 2022-07-06T16:46:40.99 3.0 undecidable manual Pg 15.72 0
IV.MPAG.HNZ. 2022-07-06T16:46:27.49 3.0 undecidable manual Pn 2.63 0
IV.MABI.HHZ. 2022-07-06T16:46:22.45 3.0 undecidable manual Sn -1.86 0
GU.GSCL.HHZ. 2022-07-06T16:46:18.77 3.0 undecidable manual Sn -1.69 0
GU.EQUI.HHZ. 2022-07-06T16:46:16.16 0.3 undecidable manual S 129 1.2986 97 1.33 43
IV.PLMA.HHZ. 2022-07-06T16:46:13.08 0.3 undecidable manual S 139 1.2294 97 -0.09 66
IV.CTI.HHZ. 2022-07-06T16:46:12.08 3.0 positive manual Pn -0.49 0
GU.MGRO.HHZ. 2022-07-06T16:46:11.00 0.6 undecidable manual S 215 1.1574 98 -0.46 41
GU.CIRO.HHZ. 2022-07-06T16:46:09.02 0.3 undecidable manual S 307 1.0270 99 0.64 61
GU.SATI.HHZ. 2022-07-06T16:46:09.24 0.3 undecidable manual S 326 1.0756 99 -0.3 68
IV.MDI.HHZ. 2022-07-06T16:46:08.40 0.6 undecidable manual S 41 1.0369 99 -0.21 47
GU.GBOS.HHZ. 2022-07-06T16:46:07.92 0.6 undecidable manual S 221 0.9857 100 0.52 44
CH.MUGIO.HHZ. 2022-07-06T16:46:06.79 0.3 undecidable manual S 13 0.9542 101 0.11 70
SI.LUSI.HHZ. 2022-07-06T16:46:05.24 3.0 negative manual Pn -0.81 0
GU.TRAV.HHZ. 2022-07-06T16:46:05.09 0.6 undecidable manual S 307 0.8732 102 0.32 46
IV.VARE.HHZ. 2022-07-06T16:46:04.82 0.3 undecidable manual S 1 0.8768 102 -0.04 74
GU.CANO.HHZ. 2022-07-06T16:46:04.39 0.6 undecidable manual S 205 0.8607 103 -0.08 48
ST.RONC.EHZ. 2022-07-06T16:46:02.98 3.0 positive manual Pn -0.65 0
IV.MAGA.HHZ. 2022-07-06T16:46:01.20 0.1 undecidable manual P 59 1.5396 95 -0.67 67
IV.QLNO.HHZ. 2022-07-06T16:46:00.90 0.6 undecidable manual S 203 0.7222 107 -0.38 47
GU.EQUI.HHZ. 2022-07-06T16:45:59.22 0.1 undecidable manual P 129 1.2986 97 0.65 79
GU.ENR.HHZ. 2022-07-06T16:45:57.40 0.1 undecidable manual P 232 1.2105 97 0.05 91
IV.PLMA.HHZ. 2022-07-06T16:45:57.62 0.1 undecidable manual P 139 1.2294 97 0.01 90
GU.SATI.HHZ. 2022-07-06T16:45:56.25 0.1 undecidable manual P 326 1.0756 99 0.73 78
GU.LSD.HHZ. 2022-07-06T16:45:56.74 0.1 undecidable manual P 293 1.2249 97 -0.82 71
GU.MGRO.HHZ. 2022-07-06T16:45:56.59 0.1 undecidable manual P 215 1.1574 98 -0.04 91
GU.RSP.HHZ. 2022-07-06T16:45:56.24 0.1 undecidable manual P 279 1.0540 99 1.02 70
GU.GBOS.HHZ. 2022-07-06T16:45:54.59 0.1 undecidable manual P 221 0.9857 100 0.31 92
IV.MDI.HHZ. 2022-07-06T16:45:54.64 0.1 undecidable manual P 41 1.0369 99 -0.34 90
GU.CIRO.HHZ. 2022-07-06T16:45:53.67 0.1 undecidable manual P 307 1.0270 99 -1.18 64
CH.MUGIO.HHZ. 2022-07-06T16:45:53.84 0.1 undecidable manual P 13 0.9542 101 -0.02 98
IV.MSSA.HHZ. 2022-07-06T16:45:53.45 0.1 undecidable manual P 140 0.8705 102 0.73 84
GU.ROTM.HHZ. 2022-07-06T16:45:53.00 0.3 undecidable manual S 243 0.3094 136 0.28 76
GU.TRAV.HHZ. 2022-07-06T16:45:52.01 0.3 positive manual P 307 0.8732 102 -0.75 61
GU.CANO.HHZ. 2022-07-06T16:45:52.50 1.0 positive manual P 205 0.8607 103 -0.09 24
IV.VARE.HHZ. 2022-07-06T16:45:52.88 0.1 undecidable manual P 1 0.8768 102 0.06 98
IV.QLNO.HHZ. 2022-07-06T16:45:50.68 0.1 negative manual P 203 0.7222 107 -0.06 100
GU.GORR.HHZ. 2022-07-06T16:45:47.71 0.6 undecidable manual P 134 0.5468 115 -0.76 43
GU.RNCA.HHZ. 2022-07-06T16:45:47.54 0.1 undecidable manual P 164 0.5396 116 -0.85 83
GU.ROTM.HHZ. 2022-07-06T16:45:45.94 0.3 positive manual P 243 0.3094 136 0.14 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ROTM.HHE. ML:2.1 0.000266 0.48 AML other m 2022-07-06T16:45:53.53
GU.ROTM.HHN. ML:2.2 0.000311 0.84 AML other m 2022-07-06T16:45:53.89
GU.RNCA.HHN. ML:1.7 0.00007085 0.38 AML other m 2022-07-06T16:45:56.24
GU.RNCA.HHE. ML:1.7 0.00008115 0.18 AML other m 2022-07-06T16:45:56.11
GU.GORR.HHN. ML:1.5 0.00004565 0.36 AML other m 2022-07-06T16:45:59.24
IV.QLNO.HHE. ML:1.7 0.0000493 0.56 AML other m 2022-07-06T16:46:01.34
IV.QLNO.HHN. ML:1.5 0.00003625000000000001 0.9 AML other m 2022-07-06T16:46:01.89
GU.GORR.HHE. ML:1.5 0.00005005 0.3 AML other m 2022-07-06T16:46:04.76
GU.CANO.HHN. ML:2.2 0.000132 0.22 AML other m 2022-07-06T16:46:05.34
GU.TRAV.HHE. ML:1.9 0.00007209999999999999 1 AML other m 2022-07-06T16:46:05.48
GU.TRAV.HHN. ML:2.0 0.00009215 0.22 AML other m 2022-07-06T16:46:05.83
IV.VARE.HHN. ML:1.8 0.000060899999999999996 0.12 AML other m 2022-07-06T16:46:06.07
IV.VARE.HHE. ML:1.8 0.0000502 1.66 AML other m 2022-07-06T16:46:06.12
IV.MSSA.HHN. ML:2.4 0.00020500000000000002 0.1 AML other m 2022-07-06T16:46:07.66
IV.MSSA.HHE. ML:2.4 0.000246 0.1 AML other m 2022-07-06T16:46:07.79
CH.MUGIO.HHE. ML:1.6 0.000030100000000000003 1.78 AML other m 2022-07-06T16:46:08.91
CH.MUGIO.HHN. ML:1.8 0.00005 0.44 AML other m 2022-07-06T16:46:08.70
GU.CIRO.HHN. ML:1.4 0.0000206 1.5 AML other m 2022-07-06T16:46:10.97
IV.MDI.HHN. ML:1.8 0.00003805 1.12 AML other m 2022-07-06T16:46:10.43
GU.CIRO.HHE. ML:1.6 0.0000237 0.38 AML other m 2022-07-06T16:46:10.61
GU.SATI.HHN. ML:1.5 0.00002105 1 AML other m 2022-07-06T16:46:11.18
IV.MDI.HHE. ML:1.9 0.000050549999999999995 0.16 AML other m 2022-07-06T16:46:11.69
GU.RSP.HHN. ML:1.3 0.000016250000000000002 0.46 AML other m 2022-07-06T16:46:12.28
GU.RSP.HHE. ML:1.5 0.000019050000000000002 0.8 AML other m 2022-07-06T16:46:12.93
GU.SATI.HHE. ML:1.7 0.0000283 1.78 AML other m 2022-07-06T16:46:14.09
GU.CANO.HHE. ML:2.2 0.0001285 1.22 AML other m 2022-07-06T16:46:27.70
IV.MPAG.HNN. ML:4.4 0.002265 0.42 AML other m 2022-07-06T16:46:27.40
IV.MPAG.HNE. ML:4.4 0.0021399999999999995 0.42 AML other m 2022-07-06T16:46:27.40
IV.MAGA.HHN. ML:2.2 0.00005599999999999999 0.46 AML other m 2022-07-06T16:46:27.64
IV.MAGA.HHE. ML:2.3 0.00007705 1.6 AML other m 2022-07-06T16:46:31.05
ST.RONC.EHE. ML:2.6 0.0001265 0.1 AML other m 2022-07-06T16:46:50.08
IV.CTI.HHN. ML:2.2 0.00002495 1.46 AML other m 2022-07-06T16:46:51.75
IV.CTI.HHE. ML:2.2 0.0000272 0.14 AML other m 2022-07-06T16:46:51.06
ST.RONC.EHN. ML:2.6 0.00012409999999999998 0.08 AML other m 2022-07-06T16:46:53.41
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download