Earthquake with magnitude of ML 1.6 on date 01-12-2019 and time 01:54:01 (Italy) in region Mar Ligure (MARE)

A magnitude ML 1.6 earthquake occured in region: Mar Ligure (MARE), on

  • 01-12-2019 00:54:01 (UTC)
  • 01-12-2019 01:54:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.37, 8.24 at 28 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km SE of Sanremo (54807 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 1.6 2019-12-01
00:54:01
43.37 8.24 28 2019-12-01
01:07:53
Sala Sismica INGV-Roma 74204241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-01 00:54:01 ± 0.31
Latitude 43.37 ± 0.02
Longitude 8.24 ± 0.02
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74204241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1982
Semi-minor axis of confidence ellipse (meter) 1234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 1980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.3202
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 74204241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-01 01:07:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.STV.HHZ. 2019-12-01T00:54:35.72 0.3 undecidable manual S 323 1.0981 54 -0.62 82
IV.CASP.HHZ. 2019-12-01T00:54:33.17 3.0 negative manual Pn 0.52 0
GU.CANO.HHE. 2019-12-01T00:54:28.72 0.6 undecidable manual S 360 0.8391 102 -0.22 62
FR.SAOF.HHZ.00 2019-12-01T00:54:27.20 0.3 undecidable manual S 321 0.7932 102 -0.42 91
GU.RORO.HHZ. 2019-12-01T00:54:26.01 0.3 undecidable manual S 350 0.7545 103 -0.49 89
IV.MSSA.HHE. 2019-12-01T00:54:24.26 0.6 undecidable manual P 44 1.3202 54 -0.29 55
GU.BURY.HHE. 2019-12-01T00:54:23.18 0.3 undecidable manual S 310 0.6466 105 -0.21 98
GU.RNCA.HHE. 2019-12-01T00:54:23.55 0.6 undecidable manual P 25 1.215 54 0.46 54
GU.STV.HHZ. 2019-12-01T00:54:22.01 0.3 undecidable manual P 323 1.0981 54 0.53 80
IV.IMI.HHZ. 2019-12-01T00:54:21.88 0.3 undecidable manual S 335 0.598 107 -0.14 100
GU.GBOS.HHE. 2019-12-01T00:54:19.46 0.6 undecidable manual P 342 0.92 100 0.89 49
IV.QLNO.HHE. 2019-12-01T00:54:19.09 0.3 undecidable manual P 4 0.9587 100 -0.13 92
RD.PGF.BHZ. 2019-12-01T00:54:18.50 0.3 undecidable manual P 146 0.9893 100 -1.23 62
GU.CANO.HHE. 2019-12-01T00:54:17.53 0.3 undecidable manual P 360 0.8391 102 0.32 92
GU.RORO.HHZ. 2019-12-01T00:54:16.02 0.3 undecidable manual P 350 0.7545 103 0.22 95
FR.SAOF.HHZ.00 2019-12-01T00:54:16.85 0.3 undecidable manual P 321 0.7932 102 0.4 91
GU.BURY.HHE. 2019-12-01T00:54:14.36 0.3 undecidable manual P 310 0.6466 105 0.36 94
IV.IMI.HHZ. 2019-12-01T00:54:13.82 0.3 undecidable manual P 335 0.598 107 0.61 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IMI.HHE. ML:1.5 5.442091E-5 0.08 AML other m 2019-12-01T00:54:22.51
IV.IMI.HHN. ML:1.7 8.4567335E-5 0.14 AML other m 2019-12-01T00:54:22.83
GU.RORO.HHN. ML:1.6 4.7592029E-5 0.12 AML other m 2019-12-01T00:54:27.16
FR.SAOF.HHE.00 ML:1.9 8.390738E-5 0.06 AML other m 2019-12-01T00:54:27.76
FR.SAOF.HHN.00 ML:1.7 5.975157E-5 0.06 AML other m 2019-12-01T00:54:27.67
RD.PGF.BHN. ML:1.5 2.373456E-5 0.24 AML other m 2019-12-01T00:54:30.05
GU.STV.HHE. ML:1.6 2.3853295E-5 0.14 AML other m 2019-12-01T00:54:36.76
GU.STV.HHN. ML:1.3 1.688426E-5 0.28 AML other m 2019-12-01T00:54:37.26
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