Earthquake with magnitude of ML 1.0 on date 20-01-2020 and time 16:14:13 (UTC) in region 7 km W Balme (TO)

A magnitude ML 1.0 earthquake occured in region: 7 km W Balme (TO), on

  • 20-01-2020 16:14:13 (UTC)
  • 20-01-2020 17:14:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.33, 7.14 at 8 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
Balme TO 7 115 115
Groscavallo TO 12 204 319
Usseglio TO 13 209 528
Ala di Stura TO 13 469 997
Ceresole Reale TO 13 156 1153
Chialamberto TO 16 345 1498
Lemie TO 17 179 1677
Moncenisio TO 19 36 1713
Novalesa TO 19 534 2247
Cantoira TO 19 564 2811
Noasca TO 19 137 2948
Ceres TO 20 1065 4013

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NW of Torino (890529 inhabitants)
56 Km NW of Moncalieri (57294 inhabitants)
96 Km W of Asti (76202 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 2020-01-20
16:14:13
45.33 7.14 8 2020-01-20
17:00:22
Sala Sismica INGV-Roma 75682791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-20 16:14:13 ± 0.22
Latitude 45.33 ± 0.01
Longitude 7.14 ± 0.03
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75682791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2119
Semi-minor axis of confidence ellipse (meter) 398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 2120
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.12591
Epicentral distance of station farthest from the epicenter (degree) 0.46135
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 75682791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-20 17:00:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2020-01-20T16:14:30.13 0.6 undecidable manual S 67 0.4614 50 0.19 46
GU.CIRO.HHZ. 2020-01-20T16:14:27.50 0.6 undecidable manual S 48 0.402 50 -0.69 41
GU.TRAV.HHZ. 2020-01-20T16:14:23.06 0.1 undecidable manual P 67 0.4614 50 0.23 92
GU.CIRO.HHZ. 2020-01-20T16:14:22.00 0.1 undecidable manual P 48 0.402 50 0.19 94
IV.MRGE.HHZ. 2020-01-20T16:14:22.26 0.1 undecidable manual P 353 0.4398 50 -0.2 93
GU.RSP.HHZ. 2020-01-20T16:14:21.19 0.3 undecidable manual S 155 0.2041 109 -0.25 72
GU.RSP.HHZ. 2020-01-20T16:14:18.00 0.1 undecidable manual P 155 0.2041 109 0.08 100
GU.LSD.HHZ. 2020-01-20T16:14:18.48 0.3 undecidable manual S 358 0.1259 119 -0.21 74
GU.LSD.HHZ. 2020-01-20T16:14:16.59 0.1 undecidable manual P 358 0.1259 119 0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHE. ML:-0.3 2.5083185E-6 0.1152 AML other m 2020-01-20T16:14:18.75
GU.LSD.HHN. ML:1.2 0.000156529985 0.064 AML other m 2020-01-20T16:14:18.52
GU.RSP.HHE. ML:1.2 0.00011790004 0.0896 AML other m 2020-01-20T16:14:21.31
GU.RSP.HHN. ML:0.9 5.290464E-5 0.0896 AML other m 2020-01-20T16:14:21.36
GU.RSP.HNE. ML:1.2 0.000103888175 0.1024 AML other m 2020-01-20T16:14:21.32
GU.RSP.HNN. ML:0.8 4.7379655E-5 0.192 AML other m 2020-01-20T16:14:21.86
GU.CIRO.HHE. ML:0.5 8.5382115E-6 0.1536 AML other m 2020-01-20T16:14:28.26
GU.CIRO.HHN. ML:1.1 3.454605E-5 1.2672 AML other m 2020-01-20T16:14:41.61
IV.MRGE.HHE. ML:0.7 1.514135E-5 0.1408 AML other m 2020-01-20T16:14:28.19
IV.MRGE.HHN. ML:0.9 2.20824915E-5 0.0896 AML other m 2020-01-20T16:14:28.89
GU.TRAV.HHE. ML:1.3 5.4073695E-5 0.192 AML other m 2020-01-20T16:14:32.04
GU.TRAV.HHN. ML:1.2 4.147795E-5 0.0768 AML other m 2020-01-20T16:14:32.10
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