INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 16-01-2019 and time 17:21:30 (Italy) in region 2 km S Roccavignale (SV)

A magnitude ML 1.0 earthquake occured in region: 2 km S Roccavignale (SV), on

  • 16-01-2019 16:21:30 (UTC)
  • 16-01-2019 17:21:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.34, 8.2 at 9 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
Roccavignale SV 2 752 752
Millesimo SV 3 3383 4135
Murialdo SV 4 841 4976
Plodio SV 4 650 5626
Cosseria SV 4 1105 6731
Cengio SV 5 3563 10294
Castelnuovo di Ceva CN 5 110 10404
Montezemolo CN 6 259 10663
Pallare SV 6 923 11586
Osiglia SV 7 444 12030
Bormida SV 8 387 12417
Carcare SV 8 5587 18004
Saliceto CN 8 1323 19327
Perlo CN 9 116 19443
Cairo Montenotte SV 9 13269 32712
Priero CN 9 529 33241
Mallare SV 10 1146 34387
Camerana CN 10 631 35018
Sale delle Langhe CN 11 486 35504
Nucetto CN 11 430 35934
Massimino SV 11 113 36047
Sale San Giovanni CN 11 183 36230
Altare SV 12 2108 38338
Bagnasco CN 13 1035 39373
Calizzano SV 13 1475 40848
Gottasecca CN 14 148 40996
Ceva CN 14 5782 46778
Paroldo CN 14 211 46989
Rialto SV 15 564 47553
Battifollo CN 15 219 47772
Dego SV 15 1985 49757
Monesiglio CN 15 645 50402
Roascio CN 16 97 50499
Torresina CN 16 52 50551
Scagnello CN 17 194 50745
Mombarcaro CN 17 268 51013
Castelletto Uzzone CN 17 331 51344
Orco Feglino SV 17 890 52234
Calice Ligure SV 17 1730 53964
Prunetto CN 17 451 54415
Magliolo SV 17 974 55389
Priola CN 17 701 56090
Bardineto SV 17 756 56846
Lisio CN 18 201 57047
Quiliano SV 18 7232 64279
Vezzi Portio SV 18 809 65088
Mombasiglio CN 18 609 65697
Piana Crixia SV 18 788 66485
Igliano CN 19 74 66559
Giustenice SV 19 977 67536
Tovo San Giacomo SV 19 2582 70118
Viola CN 19 391 70509
Lesegno CN 20 794 71303
Castellino Tanaro CN 20 312 71615
Gorzegno CN 20 304 71919
Giusvalla SV 20 441 72360
San Benedetto Belbo CN 20 179 72539

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Savona (61345 inhabitants)
52 Km E of Cuneo (56081 inhabitants)
59 Km W of Genova (586655 inhabitants)
62 Km S of Asti (76202 inhabitants)
67 Km NE of Sanremo (54807 inhabitants)
72 Km SW of Alessandria (93943 inhabitants)
84 Km SE of Moncalieri (57294 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 ML 1.0 2019-01-16
16:21:30
44.34 8.2 9 2019-01-16
16:30:33
Sala Sismica INGV-Roma 64717081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-16 16:21:30 ± 0.21
Latitude 44.34 ± 0.02
Longitude 8.20 ± 0.02
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64717081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2269
Semi-minor axis of confidence ellipse (meter) 549
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 2270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31836
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 64717081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-16 16:30:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CR.STON.BHZ. 2019-01-16T16:23:16.74 3.0 undecidable manual Pg 19.01 0
OX.SABO.HNZ. 2019-01-16T16:23:09.46 3.0 undecidable manual Sg 13.59 0
IV.FRON.EHZ. 2019-01-16T16:22:51.76 3.0 undecidable manual Sg 6.6 0
IT.VNF1.HGZ. 2019-01-16T16:22:47.06 3.0 positive manual Pg 11.64 0
IV.PAOL.HHZ. 2019-01-16T16:22:38.00 3.0 undecidable manual Pn -5.56 0
IV.VIVA.HHZ. 2019-01-16T16:22:33.93 3.0 undecidable manual Pg 10.41 0
IV.PTQR.HHZ. 2019-01-16T16:22:26.10 3.0 undecidable manual Pn 0.63 0
IV.MMO1.EHZ. 2019-01-16T16:22:24.57 3.0 undecidable manual Pg 7 0
ST.VARA.EHZ. 2019-01-16T16:22:18.63 3.0 undecidable manual Sg 7.47 0
IV.ARVD.HHZ. 2019-01-16T16:22:16.14 3.0 positive manual Pg 5.99 0
IV.SNTG.HHZ. 2019-01-16T16:22:16.77 3.0 undecidable manual Pg 5.06 0
IV.BRSN.EHZ. 2019-01-16T16:22:07.30 3.0 positive manual Pg 9.03 0
IV.ATMI.HHZ. 2019-01-16T16:22:03.04 3.0 undecidable manual Pn -2.33 0
IV.CPGN.EHZ. 2019-01-16T16:22:01.58 3.0 undecidable manual Pg -1.19 0
GU.GRAM.HHZ. 2019-01-16T16:21:50.01 3.0 undecidable manual Sg -2.57 0
GU.PCP.HHZ. 2019-01-16T16:21:42.83 0.3 undecidable manual S 51 0.3184 50 0.06 72
IV.MAGA.HHZ. 2019-01-16T16:21:42.90 3.0 undecidable manual Pn -3.55 0
GU.GBOS.HHZ. 2019-01-16T16:21:41.14 0.6 undecidable manual S 249 0.2743 50 -0.33 46
GU.GBOS.HHZ. 2019-01-16T16:21:37.03 1.0 negative manual P 249 0.2743 50 0.2 24
GU.PCP.HHZ. 2019-01-16T16:21:37.52 0.1 undecidable manual P 51 0.3184 50 -0.06 97
GU.CANO.HHZ. 2019-01-16T16:21:36.45 0.6 undecidable manual S 168 0.1367 121 -0.22 49
IV.EUCT.HNZ. 2019-01-16T16:21:36.82 3.0 undecidable manual S -0.95 0
GU.RORO.HHE. 2019-01-16T16:21:36.40 0.1 undecidable manual P 202 0.2482 109 0.09 97
IV.QLNO.HHZ. 2019-01-16T16:21:35.41 0.3 undecidable manual S 99 0.1079 128 -0.32 71
GU.CANO.HHZ. 2019-01-16T16:21:34.32 0.1 positive manual P 168 0.1367 121 0.26 96
IV.QLNO.HHZ. 2019-01-16T16:21:33.66 0.1 positive manual P 99 0.1079 128 0.14 100
IV.MILN.HNZ. 2019-01-16T16:21:33.83 3.0 undecidable manual P -0.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:0.8 8.051079E-5 0.768 AML other m 2019-01-16T16:21:36.07
IV.QLNO.HHE. ML:0.8 7.907085E-5 0.7552 AML other m 2019-01-16T16:21:35.87
GU.CANO.HHE. ML:0.9 8.1599155E-5 0.4608 AML other m 2019-01-16T16:21:36.84
GU.CANO.HHN. ML:1.3 0.00017640675 0.1792 AML other m 2019-01-16T16:21:37.06
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