Earthquake with magnitude of ML 2.0 on date 05-12-2022 and time 16:47:24 (UTC) in region 3 km E San Salvatore Monferrato (AL)

A magnitude ML 2.0 earthquake occured in region: 3 km E San Salvatore Monferrato (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) 45.0060, 8.6050 at 37 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
San Salvatore Monferrato AL 3 4299 4299
Valenza AL 4 19178 23477
Castelletto Monferrato AL 4 1537 25014
Pecetto di Valenza AL 6 1267 26281
Pomaro Monferrato AL 7 355 26636
Giarole AL 7 718 27354
Bozzole AL 7 319 27673
Mirabello Monferrato AL 7 1374 29047
Frascarolo PV 8 1209 30256
Torre Beretti e Castellaro PV 8 567 30823
Pietra Marazzi AL 9 904 31727
Montecastello AL 9 321 32048
Rivarone AL 9 381 32429
Lu AL 9 1122 33551
Occimiano AL 10 1319 34870
Alessandria AL 10 93943 128813
Bassignana AL 10 1709 130522
Valmacca AL 11 1021 131543
Ticineto AL 11 1371 132914
Borgo San Martino AL 11 1428 134342
Suardi PV 11 624 134966
Quargnento AL 11 1398 136364
Piovera AL 12 851 137215
Conzano AL 12 979 138194
Cuccaro Monferrato AL 12 340 138534
Solero AL 12 1645 140179
Gambarana PV 13 225 140404
Sartirana Lomellina PV 13 1657 142061
Alluvioni Cambiò AL 13 912 142973
Camagna Monferrato AL 14 528 143501
Breme PV 14 800 144301
Mede PV 15 6693 150994
Fubine AL 15 1653 152647
Frassineto Po AL 15 1460 154107
Terruggia AL 15 936 155043
Sale AL 16 4172 159215
Vignale Monferrato AL 16 1006 160221
Valle Lomellina PV 17 2197 162418
Pieve del Cairo PV 17 2063 164481
Villa Biscossi PV 17 78 164559
Frassinello Monferrato AL 17 502 165061
Semiana PV 18 231 165292
Felizzano AL 18 2344 167636
Castellazzo Bormida AL 18 4570 172206
Altavilla Monferrato AL 18 468 172674
Rosignano Monferrato AL 18 1568 174242
Cella Monte AL 19 495 174737
Oviglio AL 19 1265 176002
San Giorgio Monferrato AL 19 1265 177267
Casale Monferrato AL 19 34437 211704
Candia Lomellina PV 19 1550 213254
Casal Cermelli AL 19 1234 214488
Guazzora AL 19 305 214793
Olivola AL 19 122 214915
Frugarolo AL 19 1968 216883
Borgoratto Alessandrino AL 19 584 217467
Viarigi AT 20 929 218396
Quattordio AL 20 1637 220033
Isola Sant'Antonio AL 20 717 220750
Lomello PV 20 2206 222956
Galliavola PV 20 211 223167

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km N of Alessandria (93943 inhabitants)
34 Km E of Asti (76202 inhabitants)
40 Km SW of Vigevano (63310 inhabitants)
48 Km W of Pavia (72576 inhabitants)
49 Km S of Novara (104380 inhabitants)
68 Km SW of Rho (50434 inhabitants)
69 Km SW of Milano (1345851 inhabitants)
70 Km SW of Legnano (60262 inhabitants)
71 Km S of Busto Arsizio (83106 inhabitants)
71 Km NW of Genova (586655 inhabitants)
72 Km E of Moncalieri (57294 inhabitants)
73 Km E of Torino (890529 inhabitants)
74 Km S of Gallarate (53343 inhabitants)
77 Km SW of Sesto San Giovanni (81608 inhabitants)
78 Km SW of Cinisello Balsamo (75078 inhabitants)
78 Km N of Savona (61345 inhabitants)
83 Km SW of Monza (122671 inhabitants)
86 Km W of Piacenza (102191 inhabitants)
92 Km S of Varese (80799 inhabitants)
97 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
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 ± 0.16
Latitude 45.0058 ± 0.0099
Longitude 8.6048 ± 0.0140
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 112536591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1189
Semi-minor axis of confidence ellipse (meter) 1002
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
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) 161
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.18531
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 12
Magnitude 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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance 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
IV.SSFR.HHZ. 2022-12-05T16:48:20.10 3.0 positive manual Pn -5.23 0
IV.BADI.EHZ. 2022-12-05T16:48:18.61 3.0 undecidable manual Pg -1.45 0
IV.FRON.EHZ. 2022-12-05T16:48:18.45 3.0 undecidable manual Pn -5.89 0
IV.NARO.HHZ. 2022-12-05T16:48:13.50 3.0 undecidable manual Pn -9 0
IV.PIEI.HHZ. 2022-12-05T16:48:12.76 3.0 positive manual Pn -9.75 0
IV.ATPI.EHZ. 2022-12-05T16:48:11.72 3.0 undecidable manual Pn -9.99 0
GU.RORO.HHZ. 2022-12-05T16:47:55.16 0.6 undecidable manual S 203 0.9713 54 0.06 45
GU.CIRO.HHZ. 2022-12-05T16:47:54.02 0.6 undecidable manual S 310 0.9416 54 -0.36 42
GU.GBOS.HHZ. 2022-12-05T16:47:54.45 0.3 undecidable manual S 216 0.9380 54 0.16 67
GU.CANO.HHZ. 2022-12-05T16:47:51.73 0.6 undecidable manual S 198 0.8400 54 -0.22 44
GU.TRAV.HHZ. 2022-12-05T16:47:50.48 0.6 undecidable manual S 310 0.7878 54 -0.23 44
IV.MDI.HHE. 2022-12-05T16:47:48.35 3.0 undecidable manual P 1.0909 4.57 0
IV.BOB.HHE. 2022-12-05T16:47:47.55 0.6 undecidable manual S 111 0.6421 54 0.32 44
GU.STV.HHZ. 2022-12-05T16:47:45.88 0.6 undecidable manual P 231 1.1853 54 0.8 34
CH.MUGIO.HHE. 2022-12-05T16:47:45.17 3.0 undecidable manual P 0.9650 3.13 0
GU.ENR.HHZ. 2022-12-05T16:47:44.64 0.3 undecidable manual P 228 1.1466 54 0.1 64
GU.RORO.HHZ. 2022-12-05T16:47:42.43 1.0 positive manual P 203 0.9713 54 0.3 21
IV.VARE.HHE. 2022-12-05T16:47:42.27 3.0 undecidable manual P 0.8687 1.56 0
GU.GBOS.HHZ. 2022-12-05T16:47:42.24 0.3 undecidable manual P 216 0.9380 54 0.58 60
GU.CIRO.HHZ. 2022-12-05T16:47:41.50 1.0 undecidable manual P 310 0.9416 54 -0.21 22
GU.BHB.HHZ. 2022-12-05T16:47:41.56 1.0 positive manual P 260 0.9650 54 -0.47 20
GU.CANO.HHZ. 2022-12-05T16:47:40.44 1.0 undecidable manual P 198 0.8400 54 0.14 23
GU.TRAV.HHZ. 2022-12-05T16:47:39.95 0.6 positive manual P 310 0.7878 54 0.36 44
IV.QLNO.HHE. 2022-12-05T16:47:38.25 0.1 undecidable manual P 195 0.7060 54 -0.2 91
IV.BOB.HHE. 2022-12-05T16:47:37.34 0.1 undecidable manual P 111 0.6421 54 -0.24 93
GU.ROTM.HHZ. 2022-12-05T16:47:37.76 0.6 undecidable manual S 229 0.2374 141 0.28 49
GU.GORR.HHZ. 2022-12-05T16:47:36.25 3.0 undecidable manual P -9.99 0
GU.PCP.HHZ. 2022-12-05T16:47:34.09 0.1 undecidable manual P 185 0.4658 121 -0.84 80
GU.ROTM.HHZ. 2022-12-05T16:47:32.15 0.1 positive manual P 229 0.2374 141 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PCP.HHE. ML:1.6 0.00007115 1.28 AML other m 2022-12-05T16:47:40.05
GU.PCP.HHN. ML:1.6 0.00007135 0.6 AML other m 2022-12-05T16:47:41.39
GU.GBOS.HHE. ML:1.5 0.0000251 1.48 AML other m 2022-12-05T16:47:50.92
GU.TRAV.HHN. ML:2.2 0.000175 0.26 AML other m 2022-12-05T16:47:53.06
GU.CANO.HHE. ML:2.4 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:1.5 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.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.ENR.HHN. ML:1.6 0.000024449999999999998 1.36 AML other m 2022-12-05T16:48:07.15
IV.BADI.EHN. ML:3.0 0.00009894999999999999 0.98 AML other m 2022-12-05T16:48:21.34
IV.BADI.EHE. ML:3.1 0.000126 0.56 AML other m 2022-12-05T16:48:21.60
IV.SSFR.HHE. ML:2.9 0.0000521 0.2 AML other m 2022-12-05T16:48:26.30
IV.SSFR.HHN. ML:2.8 0.000047149999999999994 0.2 AML other m 2022-12-05T16:48:26.30
IV.RIBO.EHE.01 ML:2.8 0.0000715 0.74 AML other m 2022-12-05T16:48:55.47
IV.RIBO.EHN.01 ML:2.9 0.0000995 1.12 AML other m 2022-12-05T16:48:55.96
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
Waveforms Seismic signals in miniseed + resp format Download