Earthquake with magnitude of Md 1.8 on date 09-12-2016 and time 12:21:55 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude Md 1.8 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 09-12-2016 11:21:55 (UTC)
  • 09-12-2016 12:21:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2060, 7.2620 at 5 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.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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
Md 1.8 2016-12-09
11:21:55
46.2065 7.2617 5 2017-05-15
03:25:43
Bollettino Sismico Italiano INGV 45316771
Reviewed
Rev100
Md 1.8 2016-12-09
11:21:55
46.2065 7.2617 5 2016-12-09
11:30:42
Sala Sismica INGV-Roma 36146461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-09 11:21:55 ± 0.26
Latitude 46.2065 ± 0.0099
Longitude 7.2617 ± 0.0117
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45316771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1037
Semi-minor axis of confidence ellipse (meter) 893
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 137
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 303
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.16188
Epicentral distance of station farthest from the epicenter (degree) 0.75183
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 45316771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-15 03:25:43

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 36146461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-09 11:30:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.LSD.HHZ. 2016-12-09T11:22:22.30 0.3 undecidable manual S 187 83.4498 50 0.29 64
IV.MRGE.HHZ. 2016-12-09T11:22:13.18 0.3 undecidable manual S 198 50.8158 50 -0.13 70
GU.LSD.HHZ. 2016-12-09T11:22:10.86 0.3 undecidable manual P 187 83.4498 50 -0.09 66
GU.REMY.HHZ. 2016-12-09T11:22:10.34 0.3 undecidable manual S 191 41.7249 96 -0.05 72
IV.MRGE.HHZ. 2016-12-09T11:22:05.81 0.1 undecidable manual P 198 50.8158 50 -0.12 94
GU.REMY.HHZ. 2016-12-09T11:22:04.39 0.3 negative manual P 191 41.7249 96 0.15 71
CH.DIX.HHZ. 2016-12-09T11:22:02.19 0.1 undecidable manual S 141 17.9709 104 -0.09 100
CH.DIX.HHZ. 2016-12-09T11:21:59.65 0.1 positive manual P 141 17.9709 104 0.09 100
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