Earthquake with magnitude of ML 2.8 on date 18-04-2012 and time 15:05:20 (Italy) in region 2 km W Cinaglio (AT)

A magnitude ML 2.8 earthquake occured in region: 2 km W Cinaglio (AT), on

  • 18-04-2012 13:05:20 (UTC)
  • 18-04-2012 15:05:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9700, 8.0810 at 67 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
Cinaglio AT 2 446 446
Cortazzone AT 2 654 1100
Cortandone AT 2 329 1429
Camerano Casasco AT 2 471 1900
Settime AT 3 530 2430
Soglio AT 3 145 2575
Chiusano d'Asti AT 4 220 2795
Monale AT 4 984 3779
Viale AT 4 257 4036
Maretto AT 5 375 4411
Roatto AT 5 400 4811
Montafia AT 5 937 5748
Montechiaro d'Asti AT 5 1276 7024
Castellero AT 5 302 7326
Cortanze AT 5 277 7603
Cossombrato AT 5 528 8131
Villa San Secondo AT 6 395 8526
Corsione AT 6 218 8744
Piea AT 6 583 9327
Capriglio AT 7 290 9617
Baldichieri d'Asti AT 7 1110 10727
Villafranca d'Asti AT 7 3094 13821
Cunico AT 8 496 14317
Frinco AT 9 768 15085
San Paolo Solbrito AT 9 1208 16293
Cantarana AT 9 982 17275
Tigliole AT 9 1699 18974
Cerreto d'Asti AT 10 224 19198
Piovà Massaia AT 10 637 19835
Dusino San Michele AT 10 1022 20857
Castell'Alfero AT 10 2763 23620
Tonco AT 11 866 24486
Passerano Marmorito AT 11 455 24941
Montiglio Monferrato AT 11 1643 26584
Villanova d'Asti AT 12 5745 32329
Buttigliera d'Asti AT 12 2626 34955
Valfenera AT 12 2462 37417
Castelnuovo Don Bosco AT 12 3272 40689
Pino d'Asti AT 12 230 40919
Asti AT 13 76202 117121
Ferrere AT 13 1608 118729
Celle Enomondo AT 13 484 119213
Moriondo Torinese TO 13 823 120036
Alfiano Natta AL 13 744 120780
Cocconato AT 14 1493 122273
Murisengo AL 14 1436 123709
Villadeati AL 14 479 124188
Revigliasco d'Asti AT 14 767 124955
Portacomaro AT 14 2006 126961
Antignano AT 14 974 127935
Calliano AT 15 1317 129252
Albugnano AT 15 529 129781
Robella AT 15 473 130254
San Damiano d'Asti AT 15 8315 138569
Isolabella TO 15 396 138965
Penango AT 15 488 139453
Mombello di Torino TO 15 415 139868
Odalengo Piccolo AL 15 262 140130
Scurzolengo AT 16 555 140685
Cellarengo AT 16 720 141405
Aramengo AT 16 607 142012
Moncucco Torinese AT 16 883 142895
Arignano TO 16 1078 143973
Brozolo TO 17 471 144444
Riva presso Chieri TO 17 4610 149054
Moransengo AT 17 192 149246
San Martino Alfieri AT 17 666 149912
Cisterna d'Asti AT 17 1245 151157
Odalengo Grande AL 17 442 151599
Berzano di San Pietro AT 17 415 152014
Moncalvo AT 17 3033 155047
Isola d'Asti AT 17 2071 157118
Castelletto Merli AL 17 476 157594
Mongardino AT 17 921 158515
Grana AT 18 600 159115
Tonengo AT 18 236 159351
Castagnole Monferrato AT 18 1245 160596
Andezeno TO 18 1984 162580
Azzano d'Asti AT 18 391 162971
Govone CN 18 2203 165174
Pralormo TO 19 1957 167131
Cinzano TO 19 340 167471
Marentino TO 19 1351 168822
Vigliano d'Asti AT 19 835 169657
Poirino TO 19 10553 180210
Montemagno AT 19 1153 181363
Rocca d'Arazzo AT 19 936 182299
Ponzano Monferrato AL 20 356 182655
Villamiroglio AL 20 306 182961
Montà CN 20 4733 187694
Priocca CN 20 2017 189711
Cerrina Monferrato AL 20 1435 191146
Grazzano Badoglio AT 20 615 191761

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NW of Asti (76202 inhabitants)
31 Km E of Moncalieri (57294 inhabitants)
33 Km E of Torino (890529 inhabitants)
43 Km W of Alessandria (93943 inhabitants)
68 Km SW of Novara (104380 inhabitants)
72 Km SW of Vigevano (63310 inhabitants)
77 Km NE of Cuneo (56081 inhabitants)
80 Km NW of Savona (61345 inhabitants)
88 Km W of Pavia (72576 inhabitants)
92 Km NW of Genova (586655 inhabitants)
94 Km SW of Busto Arsizio (83106 inhabitants)
95 Km SW of Gallarate (53343 inhabitants)
96 Km SW of Legnano (60262 inhabitants)
98 Km SW of Rho (50434 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
Bulletin
Rev1000
ML 2.8 2012-04-18
13:05:20
44.97 8.081 67 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1360279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-04-18 13:05:20 ± 0.24
Latitude 44.9700 ± 0.0117
Longitude 8.0810 ± 0.0153
Depth (km) 67 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1360279

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1236
Semi-minor axis of confidence ellipse (meter) 738
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 1769.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.72
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.01988
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 23
Magnitude information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1360279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:11:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TUE.HHZ. 2012-04-18T13:06:09.57 0.3 undecidable manual Sg 30 193.362 -0.557 45
IV.CTL8.EHN. 2012-04-18T13:06:00.81 10.0 undecidable manual Pg 0 0 0
IV.MTGR.SHZ. 2012-04-18T13:05:58.43 10.0 undecidable manual Sg 0 0 0
CH.DIX.HHZ. 2012-04-18T13:05:57.09 0.3 undecidable manual Sg 337 133.7661 -0.548 58
MN.BNI.HHN. 2012-04-18T13:05:53.94 0.3 undecidable manual Sg 275 110.4006 1.061 49
IV.MABI.HHZ. 2012-04-18T13:05:52.67 0.3 undecidable manual Pg 57 224.2089 -0.316 39
GU.RRL.HHN. 2012-04-18T13:05:51.58 0.3 undecidable manual Sg 267 101.4207 0.478 64
IV.MAGA.HHN. 2012-04-18T13:05:51.54 0.6 undecidable manual Pg 65 217.7154 -0.654 24
MN.TUE.HHZ. 2012-04-18T13:05:50.04 0.1 undecidable manual Pg 30 193.362 0.831 55
GU.ENR.HHN. 2012-04-18T13:05:49.62 0.1 undecidable manual Sg 213 97.6245 -0.73 77
GU.LSD.HHE. 2012-04-18T13:05:48.07 0.1 undecidable manual Sg 307 91.7415 -1.142 66
GU.GBOS.HHE. 2012-04-18T13:05:47.90 0.3 undecidable manual Sg 193 83.0502 0.333 68
IV.MTGR.SHZ. 2012-04-18T13:05:46.86 10.0 undecidable manual Pg 0 0 0
IV.QLNO.HHE. 2012-04-18T13:05:45.51 0.1 undecidable manual Sg 164 74.6697 -0.516 88
GU.BHB.HHZ. 2012-04-18T13:05:43.20 0.3 undecidable manual Sg 257 65.8896 -1.294 49
GU.RSP.HHZ. 2012-04-18T13:05:43.26 0.3 undecidable manual Sg 287 66.8775 -1.389 46
GU.PCP.HHZ. 2012-04-18T13:05:42.47 0.3 undecidable manual Sg 142 59.9955 -1.036 55
CH.DIX.HHZ. 2012-04-18T13:05:42.85 0.3 undecidable manual Pg 337 133.7661 0.855 52
IV.MRGE.HHE. 2012-04-18T13:05:41.19 0.3 undecidable manual Pg 319 119.0919 0.928 52
CH.MUGIO.HHZ. 2012-04-18T13:05:41.13 0.1 undecidable manual Pg 35 129.3705 -0.35 82
MN.BNI.HHN. 2012-04-18T13:05:40.47 0.3 undecidable manual Pg 275 110.4006 1.219 46
GU.PZZ.HHE. 2012-04-18T13:05:40.86 10.0 undecidable manual Sg 0 0 0
CH.MMK.HHN. 2012-04-18T13:05:40.12 0.1 undecidable manual Pg 356 120.1908 -0.272 85
IV.VARE.HHN. 2012-04-18T13:05:39.55 0.3 undecidable manual Pg 28 113.0979 -0.017 68
IV.MONC.HHZ. 2012-04-18T13:05:39.13 0.3 undecidable manual Sg 314 16.6722 0.829 62
GU.RRL.HHN. 2012-04-18T13:05:39.11 0.1 undecidable manual Pg 267 101.4207 0.887 73
GU.ROTM.HHE. 2012-04-18T13:05:39.30 0.1 undecidable manual Sg 122 25.2525 0.355 99
GU.PZZ.HHE. 2012-04-18T13:05:39.43 10.0 undecidable manual Pg 0 0 0
GU.SATI.HHN. 2012-04-18T13:05:38.09 0.1 undecidable manual Pg 351 101.7204 -0.17 90
GU.LSD.HHE. 2012-04-18T13:05:37.34 0.1 undecidable manual Pg 307 91.7415 0.208 92
GU.ENR.HHN. 2012-04-18T13:05:37.89 0.1 undecidable manual Pg 213 97.6245 0.101 94
GU.GBOS.HHE. 2012-04-18T13:05:36.68 0.1 undecidable manual Pg 193 83.0502 0.498 88
GU.FINB.HHE. 2012-04-18T13:05:36.94 0.3 undecidable manual Pg 168 90.0432 -0.006 71
GU.CIRO.HHZ. 2012-04-18T13:05:35.55 0.1 undecidable manual Pg 330 80.6637 -0.376 90
IV.QLNO.HHE. 2012-04-18T13:05:35.79 0.1 undecidable manual Pg 164 74.6697 0.495 90
IV.DOI.HHE. 2012-04-18T13:05:35.84 0.6 undecidable manual Pg 232 83.6496 -0.404 44
GU.BHB.HHZ. 2012-04-18T13:05:34.01 0.1 undecidable manual Pg 257 65.8896 -0.396 92
GU.RSP.HHZ. 2012-04-18T13:05:33.91 0.1 undecidable manual Pg 287 66.8775 -0.588 87
GU.PCP.HHZ. 2012-04-18T13:05:33.99 0.1 undecidable manual Pg 142 59.9955 0.151 99
GU.ROTM.HHE. 2012-04-18T13:05:31.57 0.1 undecidable manual Pg 122 25.2525 0.366 100
IV.MONC.HHZ. 2012-04-18T13:05:31.37 0.1 undecidable manual Pg 314 16.6722 0.54 96
IV.GMB.BHZ. 2012-04-18T13:05:27.50 10.0 undecidable manual Pg 0 0 0
IV.ERBM.EHZ. 2012-04-18T13:05:10.11 10.0 undecidable manual Pg 0 0 0
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