Earthquake with magnitude of ML 0.8 on date 09-04-2014 and time 16:49:39 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 0.8 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 09-04-2014 14:49:39 (UTC)
  • 09-04-2014 16:49:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.1230, 7.8030 at 5 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
86 Km W of Varese (80799 inhabitants)
92 Km NW of Gallarate (53343 inhabitants)
99 Km NW of Novara (104380 inhabitants)
99 Km NW of Busto Arsizio (83106 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 0.8 2014-04-09
14:49:39
46.1233 7.8032 5 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6114621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-09 14:49:39 ± 0.23
Latitude 46.1233 ± 0.0162
Longitude 7.8032 ± 0.0091
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 6114621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1890
Semi-minor axis of confidence ellipse (meter) 418
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 1890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
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) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 0.61154
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:0.8

Field Value
Value 0.8
Uncertainty 0.5
Num. used stations 2
Type of magnitude ML
Reference to an origin 6114621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-09 14:55:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2014-04-09T14:50:01.13 0.3 undecidable manual S 184 67.8765 50 -0.29 65
GU.CIRO.HHZ. 2014-04-09T14:49:59.56 0.3 undecidable manual S 198 60.5949 50 0.08 69
GU.TRAV.HHZ. 2014-04-09T14:49:52.16 0.1 undecidable manual P 184 67.8765 50 0.05 91
GU.CIRO.HHZ. 2014-04-09T14:49:51.30 0.1 undecidable manual P 198 60.5949 50 0.31 88
GU.REMY.HHZ. 2014-04-09T14:49:50.64 0.1 undecidable manual P 238 59.0964 50 -0.11 92
CH.DIX.HHZ. 2014-04-09T14:49:50.23 0.6 undecidable manual S 261 30.747 98 0.05 49
CH.DIX.HHZ. 2014-04-09T14:49:45.36 1.0 undecidable manual P 261 30.747 98 -0.26 23
CH.MMK.HHZ. 2014-04-09T14:49:44.80 0.3 undecidable manual S 123 14.7741 107 0.04 76
CH.MMK.HHZ. 2014-04-09T14:49:42.41 0.1 undecidable manual P 123 14.7741 107 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MMK.HHE. ML:0.2 0.000019 3.4 AML other m 2014-04-09T14:49:43.24
CH.MMK.HHN. ML:0.5 0.0000419 0.62 AML other m 2014-04-09T14:49:45.37
GU.REMY.HHE. ML:1.2 0.000035965 0.42 AML other m 2014-04-09T14:50:11.65
GU.REMY.HHN. ML:1.3 0.0000403 3.58 AML other m 2014-04-09T14:50:10.03
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