Earthquake with magnitude of ML 2.4 on date 09-02-2023 and time 03:42:10 (UTC) in region 1 km SW Castagnole delle Lanze (AT)

A magnitude ML 2.4 earthquake occured in region: 1 km SW Castagnole delle Lanze (AT), on

  • 09-02-2023 03:42:10 (UTC)
  • 09-02-2023 04:42:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7470, 8.1460 at 24 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
Castagnole delle Lanze AT 1 3798 3798
Coazzolo AT 2 302 4100
Neive CN 3 3405 7505
Castiglione Tinella CN 4 895 8400
Costigliole d'Asti AT 6 5914 14314
Barbaresco CN 6 658 14972
Neviglie CN 6 382 15354
Magliano Alfieri CN 7 2153 17507
Calosso AT 7 1279 18786
Mango CN 7 1308 20094
Camo CN 7 201 20295
Govone CN 7 2203 22498
Treiso CN 8 820 23318
Santo Stefano Belbo CN 8 3984 27302
Priocca CN 8 2017 29319
Trezzo Tinella CN 8 331 29650
San Martino Alfieri AT 9 666 30316
Guarene CN 9 3596 33912
Castagnito CN 9 2163 36075
Castellinaldo d'Alba CN 10 938 37013
Isola d'Asti AT 10 2071 39084
Cossano Belbo CN 10 958 40042
Agliano Terme AT 10 1642 41684
Alba CN 10 31437 73121
Moasca AT 11 494 73615
Antignano AT 11 974 74589
Montegrosso d'Asti AT 11 2344 76933
Canelli AT 12 10485 87418
San Damiano d'Asti AT 12 8315 95733
Vezza d'Alba CN 12 2287 98020
San Marzano Oliveto AT 12 1047 99067
Castelnuovo Calcea AT 12 759 99826
Vigliano d'Asti AT 12 835 100661
Rocchetta Belbo CN 12 167 100828
Loazzolo AT 12 359 101187
Celle Enomondo AT 12 484 101671
Revigliasco d'Asti AT 13 767 102438
Montaldo Scarampi AT 13 755 103193
Mongardino AT 13 921 104114
Piobesi d'Alba CN 13 1288 105402
Cessole AT 13 403 105805
Canale CN 13 5686 111491
Benevello CN 14 474 111965
Vesime AT 14 622 112587
Diano d'Alba CN 14 3570 116157
Cassinasco AT 14 611 116768
Borgomale CN 14 381 117149
Cisterna d'Asti AT 14 1245 118394
Mombercelli AT 14 2259 120653
Rodello CN 15 980 121633
Corneliano d'Alba CN 15 2118 123751
Castino CN 15 483 124234
Bubbio AT 15 893 125127
Calamandrana AT 15 1761 126888
Vinchio AT 15 601 127489
Roddi CN 15 1607 129096
Montelupo Albese CN 16 529 129625
Bosia CN 16 177 129802
Grinzane Cavour CN 16 1995 131797
Lequio Berria CN 16 487 132284
Vaglio Serra AT 16 275 132559
Montà CN 16 4733 137292
Monticello d'Alba CN 16 2292 139584
Rocchetta Palafea AT 17 338 139922
Tigliole AT 17 1699 141621
Santo Stefano Roero CN 17 1390 143011
San Giorgio Scarampi AT 17 122 143133
Nizza Monferrato AT 17 10429 153562
Perletto CN 17 292 153854
Monteu Roero CN 17 1634 155488
Azzano d'Asti AT 17 391 155879
Belveglio AT 17 350 156229
Sessame AT 18 271 156500
Montaldo Roero CN 18 844 157344
Santa Vittoria d'Alba CN 18 2795 160139
Asti AT 18 76202 236341
Albaretto della Torre CN 18 242 236583
Monastero Bormida AT 18 931 237514
Baldissero d'Alba CN 18 1069 238583
Rocca d'Arazzo AT 18 936 239519
Arguello CN 18 199 239718
Baldichieri d'Asti AT 18 1110 240828
Ferrere AT 19 1608 242436
Cortemilia CN 19 2331 244767
Verduno CN 19 588 245355
Sommariva Perno CN 19 2797 248152
Cortiglione AT 19 571 248723
Castiglione Falletto CN 19 700 249423
Castel Boglione AT 19 609 250032
Serralunga d'Alba CN 19 564 250596
Sinio CN 19 522 251118
Cravanzana CN 19 411 251529
Cantarana AT 19 982 252511
Cerretto Langhe CN 19 442 252953
Olmo Gentile AT 20 80 253033
Roccaverano AT 20 399 253432
Castello di Annone AT 20 1860 255292
Incisa Scapaccino AT 20 2288 257580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km S of Asti (76202 inhabitants)
42 Km W of Alessandria (93943 inhabitants)
46 Km SE of Moncalieri (57294 inhabitants)
52 Km SE of Torino (890529 inhabitants)
56 Km NW of Savona (61345 inhabitants)
61 Km NE of Cuneo (56081 inhabitants)
73 Km NW of Genova (586655 inhabitants)
85 Km SW of Vigevano (63310 inhabitants)
86 Km SW of Novara (104380 inhabitants)
94 Km SW of Pavia (72576 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 2.4 2023-02-09
03:42:10
44.747 8.1457 24 2023-02-09
03:49:35
Sala Sismica INGV-Roma 114278961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-09 03:42:10 ± 0.11
Latitude 44.7470 ± 0.0063
Longitude 8.1457 ± 0.0089
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114278961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 685
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.27524
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 114278961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-09 03:49:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.RONC.EHZ. 2023-02-09T03:42:45.29 3.0 undecidable manual Pn 0.05 0
FR.SAOF.HHZ.00 2023-02-09T03:42:39.20 0.6 undecidable manual S 209 0.8705 99 0 44
GU.MGRO.HHZ. 2023-02-09T03:42:35.59 0.3 undecidable manual S 199 0.7437 101 0.08 67
GU.PZZ.HHZ. 2023-02-09T03:42:35.63 0.6 undecidable manual S 252 0.7707 100 -0.66 39
GU.STV.HHZ. 2023-02-09T03:42:35.96 0.6 undecidable manual S 230 0.7698 100 -0.3 44
GU.ENR.HHZ. 2023-02-09T03:42:35.01 0.1 undecidable manual S 225 0.7329 101 -0.16 90
IV.MRGE.HHZ. 2023-02-09T03:42:33.25 0.3 undecidable manual P 324 1.2752 54 -0.47 54
GU.SATI.HHZ. 2023-02-09T03:42:31.77 0.3 undecidable manual P 350 1.1439 97 -0.02 62
GU.BHB.HHZ. 2023-02-09T03:42:31.75 0.3 undecidable manual S 278 0.6322 103 -0.51 63
GU.RORO.HHZ. 2023-02-09T03:42:31.94 0.1 undecidable manual S 185 0.6367 103 -0.45 87
GU.GORR.HHZ. 2023-02-09T03:42:29.02 3.0 undecidable manual P 1.66 0
GU.CANO.HHZ. 2023-02-09T03:42:29.21 0.1 undecidable manual S 173 0.5432 105 -0.49 88
GU.GBOS.HHZ. 2023-02-09T03:42:29.48 0.3 undecidable manual S 203 0.5504 105 -0.42 67
GU.RRL.HHZ. 2023-02-09T03:42:29.04 0.3 undecidable manual P 281 0.9767 98 0.1 65
FR.SAOF.HHZ.00 2023-02-09T03:42:27.56 0.3 undecidable manual P 209 0.8705 99 0.42 62
GU.CIRO.HHZ. 2023-02-09T03:42:27.93 0.6 undecidable manual P 335 0.9461 98 -0.5 39
GU.STV.HHZ. 2023-02-09T03:42:26.04 0.3 undecidable manual P 230 0.7698 100 0.59 60
GU.ENR.HHZ. 2023-02-09T03:42:25.39 0.1 undecidable manual P 225 0.7329 101 0.57 81
GU.MGRO.HHZ. 2023-02-09T03:42:25.56 0.3 undecidable manual P 199 0.7437 101 0.55 61
GU.PZZ.HHZ. 2023-02-09T03:42:25.77 0.3 undecidable manual P 252 0.7707 100 0.31 65
GU.RSP.HHZ. 2023-02-09T03:42:24.69 0.3 undecidable manual P 303 0.7410 101 -0.27 65
GU.BHB.HHZ. 2023-02-09T03:42:23.19 0.3 undecidable manual P 278 0.6322 103 0.05 70
GU.RORO.HHZ. 2023-02-09T03:42:23.55 0.1 undecidable manual P 185 0.6367 103 0.34 88
GU.PCP.HHZ. 2023-02-09T03:42:23.71 0.1 undecidable manual S 126 0.3507 115 -0.62 87
GU.GBOS.HHZ. 2023-02-09T03:42:22.05 0.1 undecidable manual P 203 0.5504 105 0.28 91
GU.CANO.HHZ. 2023-02-09T03:42:21.93 0.1 undecidable manual P 173 0.5432 105 0.27 91
GU.ROTM.HHZ. 2023-02-09T03:42:20.32 0.1 undecidable manual S 55 0.1790 136 0.2 100
GU.PCP.HHZ. 2023-02-09T03:42:18.58 0.1 undecidable manual P 126 0.3507 115 0.02 100
GU.ROTM.HHZ. 2023-02-09T03:42:16.34 0.1 undecidable manual P 55 0.1790 136 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ROTM.HHE. ML:3.3 0.009585000000000002 1.58 AML other m 2023-02-09T03:42:20.79
GU.ROTM.HHN. ML:3.1 0.006525 0.48 AML other m 2023-02-09T03:42:25.66
GU.PCP.HHE. ML:2.3 0.0005819999999999999 0.2 AML other m 2023-02-09T03:42:25.67
GU.PCP.HHN. ML:2.1 0.00041400000000000003 0.44 AML other m 2023-02-09T03:42:25.93
GU.GBOS.HHN. ML:2.4 0.000472 0.12 AML other m 2023-02-09T03:42:30.70
GU.GBOS.HHE. ML:2.4 0.0004625 0.46 AML other m 2023-02-09T03:42:30.96
GU.CANO.HHN. ML:2.8 0.0012400000000000002 0.42 AML other m 2023-02-09T03:42:30.97
GU.CANO.HHE. ML:2.8 0.00122 0.72 AML other m 2023-02-09T03:42:31.45
GU.BHB.HHE. ML:2.4 0.0003435 0.32 AML other m 2023-02-09T03:42:33.09
GU.BHB.HNE. ML:2.4 0.0003675 0.32 AML other m 2023-02-09T03:42:33.10
GU.RORO.HHE. ML:2.5 0.0005 1.28 AML other m 2023-02-09T03:42:33.11
GU.BHB.HHN. ML:2.4 0.0004035 0.7 AML other m 2023-02-09T03:42:33.12
GU.BHB.HNN. ML:2.4 0.0003725 0.7 AML other m 2023-02-09T03:42:33.13
GU.RORO.HHN. ML:2.3 0.0003215 1.38 AML other m 2023-02-09T03:42:33.05
GU.ENR.HHN. ML:2.7 0.0006 0.26 AML other m 2023-02-09T03:42:35.64
GU.MGRO.HHE. ML:2.6 0.0005 0.86 AML other m 2023-02-09T03:42:36.89
GU.PZZ.HHN. ML:2.5 0.0004035 0.3 AML other m 2023-02-09T03:42:36.97
GU.MGRO.HNN. ML:2.6 0.0004885 0.86 AML other m 2023-02-09T03:42:36.89
GU.PZZ.HHE. ML:2.6 0.0005250000000000001 1.68 AML other m 2023-02-09T03:42:36.98
GU.ENR.HHE. ML:2.6 0.0005155000000000001 0.9 AML other m 2023-02-09T03:42:37.34
GU.STV.HHE. ML:2.2 0.000187 0.12 AML other m 2023-02-09T03:42:38.02
GU.MGRO.HHN. ML:2.6 0.0005095000000000001 1.66 AML other m 2023-02-09T03:42:39.87
GU.MGRO.HNE. ML:2.6 0.0004955 1.66 AML other m 2023-02-09T03:42:39.87
GU.STV.HHN. ML:2.2 0.00019600000000000002 1.42 AML other m 2023-02-09T03:42:40.22
GU.CIRO.HHE. ML:1.9 0.0000702 1.22 AML other m 2023-02-09T03:42:42.82
FR.SAOF.HHE.00 ML:2.5 0.00029549999999999997 1.06 AML other m 2023-02-09T03:42:43.16
FR.SAOF.HHN.00 ML:2.3 0.0001895 0.72 AML other m 2023-02-09T03:42:44.54
GU.CIRO.HHN. ML:1.8 0.000062 1.3 AML other m 2023-02-09T03:42:45.88
GU.SATI.HHE. ML:2.1 0.00007944999999999999 0.36 AML other m 2023-02-09T03:42:51.55
GU.SATI.HHN. ML:2.1 0.0000765 0.4 AML other m 2023-02-09T03:42:52.55
GU.RSP.HNN. ML:2.2 0.0002235 0.6 AML other m 2023-02-09T03:42:54.12
GU.RSP.HNE. ML:2.4 0.0002942 0.78 AML other m 2023-02-09T03:42:55.93
ST.RONC.EHN. ML:2.7 0.00009635000000000001 0.58 AML other m 2023-02-09T03:42:57.18
ST.RONC.EHE. ML:2.5 0.00006195 1.18 AML other m 2023-02-09T03:43:25.96
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, /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