Earthquake with magnitude of Md 1.1 on date 17-02-2020 and time 12:17:21 (Italy) in region 3 km SW Bagnasco (CN)

A magnitude Md 1.1 earthquake occured in region: 3 km SW Bagnasco (CN), on

  • 17-02-2020 11:17:21 (UTC)
  • 17-02-2020 12:17:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.29, 8.02 at 2 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
Bagnasco CN 3 1035 1035
Lisio CN 4 201 1236
Battifollo CN 4 219 1455
Viola CN 4 391 1846
Priola CN 5 701 2547
Massimino SV 5 113 2660
Scagnello CN 6 194 2854
Nucetto CN 7 430 3284
Perlo CN 7 116 3400
Monasterolo Casotto CN 8 89 3489
Pamparato CN 8 302 3791
Mombasiglio CN 9 609 4400
Calizzano SV 10 1475 5875
Garessio CN 10 3244 9119
Roburent CN 10 495 9614
Ceva CN 11 5782 15396
Priero CN 12 529 15925
Castelnuovo di Ceva CN 12 110 16035
Torre Mondovì CN 12 498 16533
Murialdo SV 12 841 17374
Montaldo di Mondovì CN 13 557 17931
San Michele Mondovì CN 13 2003 19934
Lesegno CN 13 794 20728
Sale delle Langhe CN 13 486 21214
Sale San Giovanni CN 13 183 21397
Bardineto SV 14 756 22153
Montezemolo CN 14 259 22412
Roascio CN 14 97 22509
Osiglia SV 15 444 22953
Vicoforte CN 15 3136 26089
Castellino Tanaro CN 16 312 26401
Niella Tanaro CN 16 1046 27447
Torresina CN 16 52 27499
Briaglia CN 16 318 27817
Roccavignale SV 16 752 28569
Monastero di Vasco CN 16 1297 29866
Frabosa Soprana CN 17 759 30625
Paroldo CN 17 211 30836
Igliano CN 17 74 30910
Bormida SV 17 387 31297
Millesimo SV 17 3383 34680
Frabosa Sottana CN 17 1497 36177
Ormea CN 18 1617 37794
Cigliè CN 18 190 37984
Camerana CN 18 631 38615
Rocca Cigliè CN 18 142 38757
Erli SV 18 245 39002
Saliceto CN 18 1323 40325
Marsaglia CN 19 245 40570
Cengio SV 19 3563 44133
Mondovì CN 19 22484 66617
Nasino SV 19 207 66824
Castelvecchio di Rocca Barbena SV 19 145 66969
Cosseria SV 20 1105 68074
Bastia Mondovì CN 20 669 68743
Caprauna CN 20 104 68847
Plodio SV 20 650 69497
Castelbianco SV 20 330 69827
Alto CN 20 128 69955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Savona (61345 inhabitants)
39 Km E of Cuneo (56081 inhabitants)
55 Km NE of Sanremo (54807 inhabitants)
70 Km S of Asti (76202 inhabitants)
74 Km W of Genova (586655 inhabitants)
84 Km SE of Moncalieri (57294 inhabitants)
84 Km SW of Alessandria (93943 inhabitants)
91 Km SE of Torino (890529 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 Md 1.1 2020-02-17
11:17:21
44.29 8.02 2 2020-02-17
11:31:34
Sala Sismica INGV-Roma 76594741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-17 11:17:21 ± 0.22
Latitude 44.29 ± 0.01
Longitude 8.02 ± 0.01
Depth (km) 2 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76594741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1277
Semi-minor axis of confidence ellipse (meter) 829
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.17717
Epicentral distance of station farthest from the epicenter (degree) 0.43167
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 76594741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-17 11:31:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2020-02-17T11:17:30.25 0.3 undecidable manual S 81 0.2383 95 -0.25 75
GU.ENR.HHZ. 2020-02-17T11:17:30.69 0.1 undecidable manual P 262 0.4317 93 -0.21 97
GU.RORO.HHZ. 2020-02-17T11:17:28.04 0.6 undecidable manual S 169 0.1799 97 -0.23 51
GU.CANO.HHZ. 2020-02-17T11:17:27.84 0.6 undecidable manual S 117 0.1772 97 -0.33 50
IV.QLNO.HHZ. 2020-02-17T11:17:26.87 0.1 positive manual P 81 0.2383 95 0.26 100
GU.CANO.HHZ. 2020-02-17T11:17:25.46 0.6 positive manual P 117 0.1772 97 0.2 51
GU.RORO.HHZ. 2020-02-17T11:17:25.63 0.1 undecidable manual P 169 0.1799 97 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHZ. Md:1.3 10 END duration s
GU.CANO.HHZ. Md:1.1 8 END duration s
IV.QLNO.HHZ. Md:1 6 END duration s
GU.ENR.HHZ. Md:1.1 6 END duration s
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