Earthquake with magnitude of ML 1.2 on date 27-03-2015 and time 13:01:20 (Italy) in region 7 km NE Bardonecchia (TO)

A magnitude ML 1.2 earthquake occured in region: 7 km NE Bardonecchia (TO), on

  • 27-03-2015 12:01:20 (UTC)
  • 27-03-2015 13:01:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.1270, 6.7650 at 4 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
Bardonecchia TO 7 3215 3215
Salbertrand TO 11 596 3811
Oulx TO 12 3307 7118
Sauze d'Oulx TO 13 1109 8227
Exilles TO 13 273 8500
Chiomonte TO 17 916 9416
Pragelato TO 19 776 10192
Moncenisio TO 19 36 10228
Cesana Torinese TO 20 967 11195
Giaglione TO 20 631 11826
Venaus TO 20 907 12733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km W of Torino (890529 inhabitants)
74 Km W of Moncalieri (57294 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2015-03-27
12:01:20
45.127 6.7652 4 2015-03-27
12:06:40
Sala Sismica INGV-Roma 18023031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-03-27 12:01:20 ± 0.21
Latitude 45.1270 ± 0.0099
Longitude 6.7652 ± 0.0166
Depth (km) 4 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 18023031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1580
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 1580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.09713
Epicentral distance of station farthest from the epicenter (degree) 0.67539
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 18023031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-03-27 12:06:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.LSD.HHZ. 2015-03-27T12:01:36.31 0.3 undecidable manual S 38 46.8198 95 -0.91 56
IV.MRGE.HHZ. 2015-03-27T12:01:35.47 1.0 undecidable manual P 18 74.9694 50 0.71 19
GU.RSP.HHZ. 2015-03-27T12:01:34.55 0.6 undecidable manual S 86 39.2274 96 -0.05 49
GU.LSD.HHZ. 2015-03-27T12:01:30.55 0.1 undecidable manual P 38 46.8198 95 0.22 93
GU.BHB.HHZ. 2015-03-27T12:01:30.90 0.1 undecidable manual P 129 50.7159 50 -0.13 94
GU.RSP.HHZ. 2015-03-27T12:01:29.25 0.1 positive manual P 86 39.2274 96 0.44 90
GU.RRL.HHZ. 2015-03-27T12:01:28.55 0.6 undecidable manual S 175 22.9548 100 -0.46 46
GU.RRL.HHZ. 2015-03-27T12:01:25.81 0.3 undecidable manual P 175 22.9548 100 0.22 73
MN.BNI.HHZ. 2015-03-27T12:01:24.45 0.6 undecidable manual S 219 10.7781 112 -0.48 47
MN.BNI.HHZ. 2015-03-27T12:01:23.42 0.1 positive manual P 219 10.7781 112 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HHN. ML:1.6 0.0007275000000000001 0.08 AML other m 2015-03-27T12:01:24.53
MN.BNI.HNN. ML:1.5 0.0005655 0.06 AML other m 2015-03-27T12:01:24.50
MN.BNI.HHE. ML:1.3 0.0003055 0.12 AML other m 2015-03-27T12:01:24.52
MN.BNI.HNE. ML:1.2 0.000257 0.1 AML other m 2015-03-27T12:01:24.58
GU.LSD.HHN. ML:1.1 0.0000394 1.14 AML other m 2015-03-27T12:01:36.52
GU.LSD.HHE. ML:1.1 0.000038100000000000005 0.82 AML other m 2015-03-27T12:01:37.02
GU.RSP.HHN. ML:1.1 0.000044200000000000004 0.08 AML other m 2015-03-27T12:01:34.78
GU.RSP.HHE. ML:1.0 0.000035000000000000004 0.72 AML other m 2015-03-27T12:01:35.49
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download