INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.0 on date 07-12-2018 and time 05:28:55 (Italy) in region 1 km NE Aisone (CN)

A magnitude ML 2.0 earthquake occured in region: 1 km NE Aisone (CN), on

  • 07-12-2018 04:28:55 (UTC)
  • 07-12-2018 05:28:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.32, 7.23 at 8 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
Aisone CN 1 248 248
Vinadio CN 4 644 892
Demonte CN 6 2003 2895
Castelmagno CN 10 66 2961
Sambuco CN 12 92 3053
Pradleves CN 12 250 3303
Valloriate CN 12 109 3412
Monterosso Grana CN 13 505 3917
Moiola CN 13 234 4151
Valdieri CN 14 935 5086
Rittana CN 14 109 5195
Gaiola CN 15 582 5777
Pietraporzio CN 16 77 5854
Valgrana CN 16 786 6640
Entracque CN 16 774 7414
Roccasparvera CN 17 741 8155
Montemale di Cuneo CN 18 241 8396
Bernezzo CN 18 4104 12500
Cartignano CN 18 190 12690
Celle di Macra CN 19 100 12790
Marmora CN 19 68 12858
San Damiano Macra CN 19 430 13288
Canosio CN 19 80 13368
Roaschia CN 19 107 13475
Caraglio CN 20 6836 20311
Roccabruna CN 20 1585 21896
Dronero CN 20 7035 28931

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Cuneo (56081 inhabitants)
71 Km NW of Sanremo (54807 inhabitants)
84 Km SW of Moncalieri (57294 inhabitants)
91 Km SW of Torino (890529 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 2.0 2018-12-07
04:28:55
44.32 7.23 8 2018-12-07
04:35:36
Sala Sismica INGV-Roma 63728151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-07 04:28:55 ± 0.15
Latitude 44.32 ± 0.01
Longitude 7.23 ± 0.02
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63728151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1600
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 1600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.96677
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 63728151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-07 04:35:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.PGF.BHZ. 2018-12-07T04:29:30.62 3.0 negative manual Pn -1.21 0
IV.MRGE.HHZ. 2018-12-07T04:29:24.18 3.0 positive manual P 2.33 0
GU.CANO.HHZ. 2018-12-07T04:29:20.45 0.3 undecidable manual S 98 0.7311 50 -0.09 68
IV.IMI.HHZ. 2018-12-07T04:29:17.00 0.3 undecidable manual S 130 0.6286 50 -0.48 64
GU.RORO.HHZ. 2018-12-07T04:29:17.61 0.3 undecidable manual S 109 0.6358 50 -0.08 69
GU.ROTM.HHZ. 2018-12-07T04:29:15.88 3.0 positive manual P 0.66 0
GU.PCP.HHZ. 2018-12-07T04:29:14.94 0.6 undecidable manual P 76 0.9668 50 0.86 34
IV.MONC.HHZ. 2018-12-07T04:29:14.70 3.0 undecidable manual P 0.66 0
GU.RSP.HHZ. 2018-12-07T04:29:11.59 0.3 undecidable manual P 2 0.8292 50 -0.15 65
GU.GBOS.HHZ. 2018-12-07T04:29:11.57 0.1 undecidable manual S 100 0.4452 50 -0.48 88
IV.QLNO.HHZ. 2018-12-07T04:29:11.86 0.3 positive manual P 89 0.8004 50 0.63 58
GU.CANO.HHZ. 2018-12-07T04:29:10.55 0.3 negative manual P 98 0.7311 50 0.49 62
FR.SAOF.HHZ.00 2018-12-07T04:29:10.37 0.3 undecidable manual S 145 0.4065 50 -0.53 66
GU.RRL.HHZ. 2018-12-07T04:29:09.22 0.3 undecidable manual P 333 0.6772 50 0.09 68
GU.RORO.HHZ. 2018-12-07T04:29:08.84 0.1 negative manual P 109 0.6358 50 0.42 86
IV.IMI.HHZ. 2018-12-07T04:29:08.55 0.3 undecidable manual P 130 0.6286 50 0.25 67
GU.BHB.HHZ. 2018-12-07T04:29:06.34 0.3 negative manual P 3 0.5171 50 -0.05 71
GU.GBOS.HHZ. 2018-12-07T04:29:05.28 0.3 undecidable manual P 100 0.4452 50 0.12 71
FR.SAOF.HHZ.00 2018-12-07T04:29:04.52 0.1 negative manual P 145 0.4065 50 0.02 98
GU.PZZ.HHZ. 2018-12-07T04:29:03.63 0.1 undecidable manual S 337 0.2041 110 -0.47 93
GU.ENR.HHZ. 2018-12-07T04:29:02.60 0.1 undecidable manual S 123 0.1664 114 -0.14 100
GU.PZZ.HHZ. 2018-12-07T04:29:00.60 0.3 undecidable manual P 337 0.2041 110 0.03 76
GU.ENR.HHZ. 2018-12-07T04:29:00.04 0.3 undecidable manual P 123 0.1664 114 0.25 73
GU.STV.HHZ. 2018-12-07T04:29:00.34 0.1 undecidable manual S 136 0.1016 126 -0.24 99
GU.STV.HHZ. 2018-12-07T04:28:58.84 0.1 undecidable manual P 136 0.1016 126 0.3 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:2 0.0012595 0.54 AML other m 2018-12-07T04:29:00.39
GU.STV.HHE. ML:1.8 0.000816 0.6 AML other m 2018-12-07T04:29:00.66
GU.ENR.HHN. ML:2.3 0.00158 0.06 AML other m 2018-12-07T04:29:02.72
GU.ENR.HHE. ML:2.4 0.001935 0.24 AML other m 2018-12-07T04:29:02.94
GU.PZZ.HHE. ML:2.1 0.0008655 0.94 AML other m 2018-12-07T04:29:03.83
GU.PZZ.HHN. ML:2.1 0.000911 0.24 AML other m 2018-12-07T04:29:03.87
FR.SAOF.HHN.00 ML:1.5 0.00010375 0.74 AML other m 2018-12-07T04:29:10.26
FR.SAOF.HHE.00 ML:1.6 0.0001215 0.06 AML other m 2018-12-07T04:29:11.51
GU.GBOS.HHE. ML:1.8 0.0001755 0.4 AML other m 2018-12-07T04:29:11.73
GU.GBOS.HHN. ML:2 0.000252 0.18 AML other m 2018-12-07T04:29:12.00
GU.BHB.HHE. ML:1.9 0.0001635 0.2 AML other m 2018-12-07T04:29:13.37
GU.BHB.HHN. ML:1.9 0.0001625 0.52 AML other m 2018-12-07T04:29:13.33
IV.IMI.HHE. ML:1.8 0.00011735 1.26 AML other m 2018-12-07T04:29:18.16
GU.RORO.HHN. ML:2 0.0001725 0.2 AML other m 2018-12-07T04:29:18.52
GU.RORO.HHE. ML:2.1 0.0001905 1.14 AML other m 2018-12-07T04:29:18.29
IV.IMI.HHN. ML:2.1 0.0002195 0.42 AML other m 2018-12-07T04:29:19.37
GU.CANO.HHN. ML:2.2 0.00019 0.24 AML other m 2018-12-07T04:29:22.08
GU.CANO.HHE. ML:2.2 0.0002045 1.2 AML other m 2018-12-07T04:29:22.39
GU.RSP.HHN. ML:1.8 7.49E-5 0.46 AML other m 2018-12-07T04:29:23.54
GU.RSP.HHE. ML:1.8 7.595E-5 0.64 AML other m 2018-12-07T04:29:24.07
IV.QLNO.HHN. ML:2 0.00010845 0.8 AML other m 2018-12-07T04:29:25.10
IV.QLNO.HHE. ML:1.9 8.415E-5 1.42 AML other m 2018-12-07T04:29:25.91
GU.PCP.HHE. ML:1.8 5.68E-5 0.38 AML other m 2018-12-07T04:29:29.33
GU.PCP.HHN. ML:1.8 5.275E-5 1.2 AML other m 2018-12-07T04:29:30.02
GU.ROTM.HHN. ML:2.5 0.0002725 0.42 AML other m 2018-12-07T04:29:30.22
GU.ROTM.HHE. ML:2.4 0.000235 0.58 AML other m 2018-12-07T04:29:38.18
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://cnt.rm.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download