Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-06-2018 and time 11:16:43 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 0.9 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 25-06-2018 09:16:43 (UTC)
  • 25-06-2018 11:16:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4820, 6.7570 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acceglio CN 19 162 162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km W of Cuneo (56081 inhabitants)
93 Km SW of Moncalieri (57294 inhabitants)
98 Km SW of Torino (890529 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
Bulletin
Rev1000 		ML 0.9 2018-06-25
09:16:43		 44.4823 6.7572 9 2019-04-24
14:51:11		 Bollettino Sismico Italiano INGV 66506521
Reviewed
Rev100 		ML 0.8 2018-06-25
09:16:43		 44.4697 6.7668 8 2018-06-25
09:34:16		 Sala Sismica INGV-Roma 58121121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-06-25 09:16:43 ± 0.26
Latitude 44.4823 ± 0.0081
Longitude 6.7572 ± 0.0139
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66506521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1231
Semi-minor axis of confidence ellipse (meter) 403
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.25721
Epicentral distance of station farthest from the epicenter (degree) 0.81029
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 66506521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-13 12:27:44

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 58121121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-06-25 09:34:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2018-06-25T09:17:10.38 0.3 undecidable manual S 107 89.9433 50 -0.13 66
FR.SAOF.HHZ.00 2018-06-25T09:17:08.97 0.3 undecidable manual S 131 83.8494 50 0.08 67
GU.ENR.HHZ. 2018-06-25T09:17:02.53 0.3 undecidable manual S 118 59.7957 50 0.07 70
GU.BHB.HHZ. 2018-06-25T09:17:01.45 0.3 undecidable manual S 45 55.8996 50 0.02 72
GU.GBOS.HHZ. 2018-06-25T09:16:59.57 0.3 undecidable manual P 107 89.9433 50 0.41 62
GU.RRL.HHZ. 2018-06-25T09:16:59.31 0.6 undecidable manual S 3 48.7179 50 -0.2 47
GU.STV.HHZ. 2018-06-25T09:16:59.74 0.3 undecidable manual S 120 52.2033 50 -0.7 60
GU.RSP.HHZ. 2018-06-25T09:16:58.39 0.6 undecidable manual P 28 83.9493 50 0.15 44
FR.SAOF.HHZ.00 2018-06-25T09:16:58.62 0.3 undecidable manual P 131 83.8494 50 0.4 63
RD.ORIF.BHZ. 2018-06-25T09:16:57.45 0.3 undecidable manual P 305 84.3489 50 -0.85 53
GU.BHB.HHZ. 2018-06-25T09:16:54.10 0.3 undecidable manual P 45 55.8996 50 0.19 69
GU.ENR.HHZ. 2018-06-25T09:16:54.76 0.3 undecidable manual P 118 59.7957 50 0.25 68
GU.RRL.HHZ. 2018-06-25T09:16:53.24 0.3 undecidable manual P 3 48.7179 50 0.44 67
GU.STV.HHZ. 2018-06-25T09:16:53.30 0.1 undecidable manual P 120 52.2033 50 -0.04 96
GU.PZZ.HHZ. 2018-06-25T09:16:53.72 0.3 undecidable manual S 84 28.5492 108 -0.32 71
GU.PZZ.HHZ. 2018-06-25T09:16:49.69 0.1 undecidable manual P 84 28.5492 108 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:0.9 0.0000421566 0.1024 AML other m 2018-06-25T09:16:54.38
GU.PZZ.HHE. ML:0.9 0.000044682625000000007 0.16 AML other m 2018-06-25T09:16:56.41
GU.STV.HHE. ML:0.6 0.000011403155 0.1024 AML other m 2018-06-25T09:17:01.34
GU.STV.HHN. ML:0.6 0.0000108370515 0.1408 AML other m 2018-06-25T09:17:01.63
GU.BHB.HHE. ML:0.8 0.000012939186999999999 0.1792 AML other m 2018-06-25T09:17:02.72
GU.BHB.HHN. ML:0.8 0.000012891525 0.1344 AML other m 2018-06-25T09:17:03.62
GU.ENR.HHN. ML:1.1 0.000025962994999999998 0.0768 AML other m 2018-06-25T09:17:04.06
GU.ENR.HHE. ML:1.1 0.000022707105 0.0576 AML other m 2018-06-25T09:17:04.65
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