Earthquake with magnitude of ML 0.4 on date 16-09-2020 and time 06:21:53 (UTC) in region 3 km NE Priola (CN)

A magnitude ML 0.4 earthquake occured in region: 3 km NE Priola (CN), on

  • 16-09-2020 06:21:53 (UTC)
  • 16-09-2020 08:21:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.27, 8.05 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
Priola CN 3 701 701
Bagnasco CN 4 1035 1736
Massimino SV 4 113 1849
Battifollo CN 6 219 2068
Lisio CN 7 201 2269
Calizzano SV 7 1475 3744
Viola CN 7 391 4135
Perlo CN 8 116 4251
Nucetto CN 8 430 4681
Scagnello CN 8 194 4875
Garessio CN 8 3244 8119
Murialdo SV 10 841 8960
Pamparato CN 11 302 9262
Monasterolo Casotto CN 11 89 9351
Bardineto SV 11 756 10107
Castelnuovo di Ceva CN 11 110 10217
Mombasiglio CN 12 609 10826
Priero CN 12 529 11355
Osiglia SV 12 444 11799
Ceva CN 13 5782 17581
Roburent CN 13 495 18076
Montezemolo CN 14 259 18335
Sale delle Langhe CN 14 486 18821
Sale San Giovanni CN 15 183 19004
Torre Mondovì CN 15 498 19502
Bormida SV 15 387 19889
Roccavignale SV 15 752 20641
Montaldo di Mondovì CN 15 557 21198
Erli SV 16 245 21443
Lesegno CN 16 794 22237
San Michele Mondovì CN 16 2003 24240
Millesimo SV 16 3383 27623
Roascio CN 16 97 27720
Castelvecchio di Rocca Barbena SV 17 145 27865
Ormea CN 17 1617 29482
Nasino SV 17 207 29689
Castelbianco SV 18 330 30019
Torresina CN 18 52 30071
Paroldo CN 18 211 30282
Castellino Tanaro CN 18 312 30594
Cengio SV 18 3563 34157
Plodio SV 18 650 34807
Camerana CN 18 631 35438
Alto CN 18 128 35566
Saliceto CN 19 1323 36889
Vicoforte CN 19 3136 40025
Cosseria SV 19 1105 41130
Magliolo SV 19 974 42104
Zuccarello SV 19 309 42413
Caprauna CN 19 104 42517
Niella Tanaro CN 19 1046 43563
Rialto SV 19 564 44127
Balestrino SV 19 595 44722
Pallare SV 19 923 45645
Frabosa Soprana CN 19 759 46404
Briaglia CN 19 318 46722
Giustenice SV 19 977 47699
Monastero di Vasco CN 19 1297 48996
Igliano CN 19 74 49070

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Savona (61345 inhabitants)
42 Km E of Cuneo (56081 inhabitants)
54 Km NE of Sanremo (54807 inhabitants)
71 Km S of Asti (76202 inhabitants)
72 Km W of Genova (586655 inhabitants)
84 Km SW of Alessandria (93943 inhabitants)
86 Km SE of Moncalieri (57294 inhabitants)
94 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
Reviewed
Rev100
ML 0.4 2020-09-16
06:21:53
44.27 8.05 10 2020-09-16
06:27:29
Sala Sismica INGV-Roma 82944811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-16 06:21:53 ± 0.1
Latitude 44.27 ± 0.01
Longitude 8.05 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82944811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 800
Semi-minor axis of confidence ellipse (meter) 560
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 345
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.15019
Epicentral distance of station farthest from the epicenter (degree) 0.85705
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 82944811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-16 06:27:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2020-09-16T06:22:08.02 3.0 undecidable manual P 0.8571 -1.35 0
GU.ENR.HHZ. 2020-09-16T06:22:02.81 1.0 negative manual P 264 0.4515 50 0.38 22
GU.RORO.HHZ. 2020-09-16T06:22:00.06 0.6 undecidable manual S 175 0.1601 119 -0.17 49
GU.MGRO.HHZ. 2020-09-16T06:21:59.83 0.6 positive manual P 217 0.286 50 0.22 48
IV.QLNO.HHZ. 2020-09-16T06:21:58.40 0.1 undecidable manual P 76 0.2194 112 -0.03 100
GU.RORO.HHZ. 2020-09-16T06:21:57.42 0.6 undecidable manual P 175 0.1601 119 0.18 49
GU.CANO.HHZ. 2020-09-16T06:21:57.06 0.3 undecidable manual P 115 0.1502 121 0.01 76
GU.GBOS.HHZ. 2020-09-16T06:21:56.91 0.1 undecidable manual P 259 0.152 121 -0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GBOS.HHE. ML:0.1 9.16E-6 0.64 AML other m 2020-09-16T06:21:59.69
GU.GBOS.HHN. ML:0.4 1.825E-5 0.66 AML other m 2020-09-16T06:21:59.39
GU.MGRO.HHE. ML:0.5 1.51E-5 1.5 AML other m 2020-09-16T06:22:00.86
GU.MGRO.HHN. ML:0.5 1.339E-5 0.42 AML other m 2020-09-16T06:22:08.27
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