Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 19-04-2019 and time 18:22:10 (Italy) in region Costa Siciliana centro settentrionale (Palermo)

A magnitude ML 1.6 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on

  • 19-04-2019 16:22:10 (UTC)
  • 19-04-2019 18:22:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2180, 13.5840 at 8 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
Santa Flavia PA 16 11272 11272
Bagheria PA 17 55387 66659
Ficarazzi PA 18 12933 79592
Casteldaccia PA 19 11685 91277
Altavilla Milicia PA 20 8210 99487
Villabate PA 20 20252 119739

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Bagheria (55387 inhabitants)
22 Km NE of Palermo (674435 inhabitants)
91 Km NW of Caltanissetta (63360 inhabitants)
96 Km E of Trapani (68759 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 1.6 2019-04-19
16:22:10		 38.218 13.5838 8 2019-08-22
08:25:15		 Bollettino Sismico Italiano INGV 71278521
Reviewed
Rev100 		ML 1.7 2019-04-19
16:22:10		 38.2217 13.5798 9 2019-04-19
16:28:16		 Sala Sismica INGV-Roma 67749941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-19 16:22:10 ± 0.49
Latitude 38.2180 ± 0.0234
Longitude 13.5838 ± 0.0160
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71278521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2670
Semi-minor axis of confidence ellipse (meter) 1063
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 2670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 0.48743
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71278521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-08 16:15:09

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 67749941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-19 16:28:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2019-04-19T16:22:28.66 0.3 undecidable manual S 127 51.8037 50 0.81 57
IV.CORL.HHZ. 2019-04-19T16:22:25.40 0.6 undecidable manual S 214 43.4232 50 -0.23 46
IV.SCIAR.HHZ. 2019-04-19T16:22:22.76 0.3 undecidable manual S 155 33.9438 102 -0.09 73
IV.ALJA.HHZ. 2019-04-19T16:22:21.68 0.1 undecidable manual P 164 54.1014 50 0.68 80
IV.CSLB.HHZ. 2019-04-19T16:22:19.96 0.1 undecidable manual P 127 51.8037 50 -0.68 80
IV.CORL.HHZ. 2019-04-19T16:22:18.57 0.3 undecidable manual P 214 43.4232 50 -0.78 59
IV.MPG.SHZ. 2019-04-19T16:22:18.76 0.3 undecidable manual S 252 20.4684 110 0.41 70
IV.SCIAR.HHZ. 2019-04-19T16:22:17.66 0.3 undecidable manual P 155 33.9438 102 -0.09 73
IV.SOLUN.HHZ. 2019-04-19T16:22:16.48 0.3 undecidable manual S 198 14.6742 117 -0.01 76
IV.MPG.SHZ. 2019-04-19T16:22:15.25 0.3 undecidable manual P 252 20.4684 110 0.1 74
IV.SOLUN.HHZ. 2019-04-19T16:22:13.97 0.1 undecidable manual P 198 14.6742 117 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOLUN.HHE. ML:1.7 0.0005602667500000001 1.6288 AML other m 2019-04-19T16:22:17.88
IV.SOLUN.HHN. ML:1.8 0.0006022509999999999 1.7056 AML other m 2019-04-19T16:22:17.93
IV.MPG.SHN. ML:0.0 0.00006972051 0.1664 AML other m 2019-04-19T16:22:19.15
IV.SCIAR.HNN. ML:1.5 0.00014745564999999998 0.5632 AML other m 2019-04-19T16:22:19.48
IV.MPG.SHE. ML:0.0 0.000054287185 0.1152 AML other m 2019-04-19T16:22:20.39
IV.SCIAR.HHN. ML:1.6 0.00016109279999999997 0.3456 AML other m 2019-04-19T16:22:23.33
IV.SCIAR.HHE. ML:1.7 0.00020369475 0.3584 AML other m 2019-04-19T16:22:23.33
IV.SCIAR.HNE. ML:1.5 0.00013723544999999997 0.384 AML other m 2019-04-19T16:22:23.51
IV.CSLB.HHN. ML:1.2 0.00004306268 0.4992 AML other m 2019-04-19T16:22:29.13
IV.CSLB.HHE. ML:1.1 0.000030883655 1.744 AML other m 2019-04-19T16:22:30.08
IV.ALJA.HHN. ML:1.7 0.00011453579999999999 1.7184 AML other m 2019-04-19T16:22:33.95
IV.ALJA.HHE. ML:1.7 0.00011383725 0.4096 AML other m 2019-04-19T16:22:33.61
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