ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.7 on date 20-03-2019 and time 15:26:17 (Italy) in region 3 km S Roccavignale (SV)

A magnitude ML 0.7 earthquake occured in region: 3 km S Roccavignale (SV), on

  • 20-03-2019 14:26:17 (UTC)
  • 20-03-2019 15:26:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.34, 8.2 at 10 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 3 752 752
Millesimo SV 3 3383 4135
Murialdo SV 4 841 4976
Plodio SV 5 650 5626
Cosseria SV 5 1105 6731
Castelnuovo di Ceva CN 6 110 6841
Cengio SV 6 3563 10404
Osiglia SV 6 444 10848
Montezemolo CN 6 259 11107
Pallare SV 6 923 12030
Bormida SV 7 387 12417
Carcare SV 8 5587 18004
Saliceto CN 9 1323 19327
Perlo CN 9 116 19443
Priero CN 9 529 19972
Cairo Montenotte SV 10 13269 33241
Mallare SV 10 1146 34387
Camerana CN 11 631 35018
Massimino SV 11 113 35131
Nucetto CN 11 430 35561
Sale delle Langhe CN 11 486 36047
Sale San Giovanni CN 12 183 36230
Altare SV 12 2108 38338
Bagnasco CN 13 1035 39373
Calizzano SV 13 1475 40848
Ceva CN 14 5782 46630
Gottasecca CN 14 148 46778
Rialto SV 14 564 47342
Paroldo CN 15 211 47553
Battifollo CN 15 219 47772
Dego SV 16 1985 49757
Monesiglio CN 16 645 50402
Roascio CN 16 97 50499
Calice Ligure SV 17 1730 52229
Orco Feglino SV 17 890 53119
Scagnello CN 17 194 53313
Magliolo SV 17 974 54287
Torresina CN 17 52 54339
Bardineto SV 17 756 55095
Priola CN 17 701 55796
Mombarcaro CN 17 268 56064
Lisio CN 18 201 56265
Castelletto Uzzone CN 18 331 56596
Prunetto CN 18 451 57047
Vezzi Portio SV 18 809 57856
Quiliano SV 18 7232 65088
Mombasiglio CN 18 609 65697
Giustenice SV 19 977 66674
Tovo San Giacomo SV 19 2582 69256
Igliano CN 19 74 69330
Piana Crixia SV 19 788 70118
Viola CN 19 391 70509
Lesegno CN 20 794 71303
Castellino Tanaro CN 20 312 71615

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)
63 Km S of Asti (76202 inhabitants)
66 Km NE of Sanremo (54807 inhabitants)
72 Km SW of Alessandria (93943 inhabitants)
84 Km SE of Moncalieri (57294 inhabitants)
92 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 0.7 2019-03-20
14:26:17
44.34 8.2 11 2019-03-20
14:34:21
Sala Sismica INGV-Roma 66718991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 14:26:17 ± 0.19
Latitude 44.34 ± 0.01
Longitude 8.20 ± 0.02
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66718991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1890
Semi-minor axis of confidence ellipse (meter) 932
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 126
Circular confidence region, given by single value of horizontal uncertainty (meter) 1890
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 66718991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 14:34:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ENR.HHZ. 2019-03-20T14:26:30.11 3.0 undecidable manual P 0.09 0
GU.GBOS.HHZ. 2019-03-20T14:26:28.04 0.3 undecidable manual S 250 0.2725 50 -0.49 70
GU.RORO.HHZ. 2019-03-20T14:26:27.46 0.6 undecidable manual S 203 0.2428 50 -0.2 50
GU.CANO.HHZ. 2019-03-20T14:26:24.25 0.6 undecidable manual S 167 0.1322 125 0.12 52
GU.PCP.HHZ. 2019-03-20T14:26:24.97 0.3 negative manual P 50 0.322 50 0.09 75
GU.GBOS.HHZ. 2019-03-20T14:26:24.30 0.1 undecidable manual P 250 0.2725 50 0.28 97
GU.RORO.HHZ. 2019-03-20T14:26:23.70 0.1 undecidable manual P 203 0.2428 50 0.18 100
IV.QLNO.HHZ. 2019-03-20T14:26:23.04 0.3 undecidable manual S 97 0.1079 131 -0.34 74
IV.QLNO.HHZ. 2019-03-20T14:26:21.09 0.3 negative manual P 97 0.1079 131 0.04 79
GU.CANO.HHZ. 2019-03-20T14:26:21.81 1.0 undecidable manual P 167 0.1322 125 0.33 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:0.6 4.5568955E-5 0.4032 AML other m 2019-03-20T14:26:25.50
IV.QLNO.HHN. ML:0.8 6.2944125E-5 0.4032 AML other m 2019-03-20T14:26:24.94
GU.CANO.HHE. ML:1.1 0.000108281045 0.736 AML other m 2019-03-20T14:26:26.34
GU.CANO.HHN. ML:1 9.2810255E-5 0.1856 AML other m 2019-03-20T14:26:24.64
GU.RORO.HHE. ML:0.6 2.11613085E-5 0.1216 AML other m 2019-03-20T14:26:28.11
GU.RORO.HHN. ML:0.6 2.18578065E-5 0.1408 AML other m 2019-03-20T14:26:28.18
GU.GBOS.HHE. ML:0.5 1.3392425E-5 0.7232 AML other m 2019-03-20T14:26:32.23
GU.GBOS.HHN. ML:0.7 2.5885895E-5 0.8768 AML other m 2019-03-20T14:26:32.85
GU.PCP.HHE. ML:0.6 1.5622999E-5 0.5376 AML other m 2019-03-20T14:26:35.42
GU.PCP.HHN. ML:0.9 2.9306905E-5 1.344 AML other m 2019-03-20T14:26:24.39
GU.ENR.HHE. ML:0.7 1.088204E-5 0.0768 AML other m 2019-03-20T14:26:41.04
GU.ENR.HHN. ML:0.9 1.43705045E-5 0.256 AML other m 2019-03-20T14:26:49.28
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