INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 16-02-2019 and time 11:23:51 (Italy) in region 2 km NE Roccabruna (CN)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Roccabruna (CN), on

  • 16-02-2019 10:23:51 (UTC)
  • 16-02-2019 11:23:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5, 7.35 at 6 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
Roccabruna CN 2 1585 1585
Villar San Costanzo CN 3 1547 3132
Dronero CN 3 7035 10167
Cartignano CN 5 190 10357
Valmala CN 6 52 10409
Montemale di Cuneo CN 7 241 10650
San Damiano Macra CN 7 430 11080
Melle CN 8 292 11372
Venasca CN 9 1437 12809
Brossasco CN 9 1084 13893
Rossana CN 9 908 14801
Monterosso Grana CN 10 505 15306
Valgrana CN 10 786 16092
Pradleves CN 10 250 16342
Busca CN 10 10181 26523
Frassino CN 10 265 26788
Caraglio CN 11 6836 33624
Isasca CN 11 76 33700
Piasco CN 12 2774 36474
Brondello CN 13 290 36764
Costigliole Saluzzo CN 13 3375 40139
Macra CN 14 59 40198
Celle di Macra CN 14 100 40298
Bernezzo CN 14 4104 44402
Castelmagno CN 14 66 44468
Martiniana Po CN 15 734 45202
Pagno CN 15 585 45787
Gambasca CN 15 371 46158
Cervasca CN 16 5013 51171
Tarantasca CN 16 2122 53293
Sampeyre CN 16 1022 54315
Castellar CN 16 295 54610
Verzuolo CN 16 6459 61069
Villafalletto CN 16 2925 63994
Rittana CN 16 109 64103
Sanfront CN 17 2395 66498
Manta CN 17 3787 70285
Valloriate CN 17 109 70394
Rifreddo CN 17 1078 71472
Stroppo CN 18 103 71575
Vignolo CN 18 2600 74175
Revello CN 18 4262 78437
Gaiola CN 18 582 79019
Roccasparvera CN 18 741 79760
Centallo CN 19 6954 86714
Moiola CN 20 234 86948
Cuneo CN 20 56081 143029
Vottignasco CN 20 537 143566

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Cuneo (56081 inhabitants)
62 Km SW of Moncalieri (57294 inhabitants)
70 Km SW of Torino (890529 inhabitants)
81 Km SW of Asti (76202 inhabitants)
83 Km NW of Sanremo (54807 inhabitants)
92 Km W of Savona (61345 inhabitants)
Recent and historical Seismicity
Seismic hazard
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 1.0 2019-02-16
10:23:51
44.49 7.35 7 2019-02-16
10:31:42
Sala Sismica INGV-Roma 65602281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-16 10:23:51 ± 0.21
Latitude 44.49 ± 0.01
Longitude 7.35 ± 0.03
Depth (km) 7 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65602281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2160
Semi-minor axis of confidence ellipse (meter) 958
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 2160
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.63942
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 65602281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-16 10:31:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2019-02-16T10:25:21.60 3.0 negative manual Pg 21.889999 0
IV.MC2.EHZ. 2019-02-16T10:25:20.16 3.0 negative manual Pg 22.65 0
IV.MMO1.EHZ. 2019-02-16T10:25:20.71 3.0 positive manual Pg 21.82 0
IV.NDIM.HHZ. 2019-02-16T10:25:07.75 3.0 undecidable manual Sn -6.7 0
IV.EUCT.HNZ. 2019-02-16T10:24:46.91 3.0 undecidable manual Sg -0.07 0
IV.MSSA.HHZ. 2019-02-16T10:24:45.19 3.0 undecidable manual Sn -4.27 0
GU.RORO.HHE. 2019-02-16T10:24:13.90 0.6 undecidable manual S 126 0.6394 50 -0.1 47
MN.BNI.HHZ. 2019-02-16T10:24:12.17 3.0 undecidable manual Sg 0.8 0
FR.SAOF.HHE. 2019-02-16T10:24:09.69 3.0 undecidable manual S 0.5288 -1.04 0
GU.GBOS.HHZ. 2019-02-16T10:24:07.65 0.6 undecidable manual S 126 0.4317 50 -0.21 48
GU.RORO.HHE. 2019-02-16T10:24:05.36 3.0 undecidable manual P 126 0.6394 50 0.83 0
GU.BHB.HHZ. 2019-02-16T10:24:03.40 3.0 undecidable manual S 350 0.3462 100 -1.7 0
FR.SAOF.HHE. 2019-02-16T10:24:03.20 3.0 undecidable manual P 0.5288 0.56 0
IV.IMI.HHZ. 2019-02-16T10:24:03.46 3.0 undecidable manual Pn 0.16 0
GU.GBOS.HHZ. 2019-02-16T10:24:01.45 1.0 undecidable manual P 126 0.4317 50 0.47 23
GU.ENR.HHZ. 2019-02-16T10:24:01.82 0.6 undecidable manual S 169 0.2725 102 -0.5 47
GU.STV.HHZ. 2019-02-16T10:24:00.88 0.6 undecidable manual S 184 0.25 103 -0.58 46
GU.BHB.HHZ. 2019-02-16T10:23:59.05 0.3 negative manual P 350 0.3462 100 -0.33 72
GU.ENR.HHZ. 2019-02-16T10:23:58.12 0.1 undecidable manual P 169 0.2725 102 0.34 97
GU.PZZ.HHZ. 2019-02-16T10:23:57.96 0.6 undecidable manual S 274 0.1673 109 -0.44 49
GU.STV.HHZ. 2019-02-16T10:23:57.66 0.1 negative manual P 184 0.25 103 0.37 97
GU.PZZ.HHZ. 2019-02-16T10:23:55.83 0.1 undecidable manual P 274 0.1673 109 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:1.1 0.000108 0.42 AML other m 2019-02-16T10:23:58.43
GU.PZZ.HHN. ML:1.2 0.0001465 0.64 AML other m 2019-02-16T10:23:58.25
GU.STV.HHE. ML:0.7 2.915E-5 1.04 AML other m 2019-02-16T10:24:00.99
GU.STV.HHN. ML:0.8 3.48E-5 0.26 AML other m 2019-02-16T10:24:01.34
GU.ENR.HHE. ML:1.2 8.275E-5 1.14 AML other m 2019-02-16T10:24:02.64
GU.ENR.HHN. ML:1.1 6.385E-5 0.66 AML other m 2019-02-16T10:24:02.58
GU.GBOS.HHE. ML:0.6 1.08E-5 0.42 AML other m 2019-02-16T10:24:15.77
GU.GBOS.HHN. ML:1.7 0.0001315 1.42 AML other m 2019-02-16T10:24:47.81
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download