ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.1 on date 15-03-2019 and time 21:16:04 (UTC) in region 5 km NE Gangi (PA)

A magnitude ML 1.1 earthquake occured in region: 5 km NE Gangi (PA), on

  • 15-03-2019 21:16:04 (UTC)
  • 15-03-2019 22:16:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.83, 14.26 at 13 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gangi PA 5 6811 6811
Castel di Lucio ME 9 1294 8105
Geraci Siculo PA 10 1945 10050
Sperlinga EN 11 805 10855
San Mauro Castelverde PA 12 1701 12556
Petralia Soprana PA 13 3360 15916
Petralia Sottana PA 14 2821 18737
Nicosia EN 15 13899 32636
Mistretta ME 15 4791 37427
Bompietro PA 16 1401 38828
Pettineo ME 16 1350 40178
Blufi PA 18 1029 41207
Tusa ME 18 2925 44132
Motta d'Affermo ME 18 739 44871
Reitano ME 18 806 45677
Castellana Sicula PA 19 3411 49088
Castelbuono PA 19 8943 58031
Alimena PA 19 2032 60063
Capizzi ME 20 3176 63239

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Caltanissetta (63360 inhabitants)
71 Km E of Bagheria (55387 inhabitants)
82 Km W of Catania (314555 inhabitants)
82 Km NE of Agrigento (59770 inhabitants)
84 Km W of Acireale (52622 inhabitants)
84 Km N of Gela (75827 inhabitants)
85 Km E of Palermo (674435 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 1.1 2019-03-15
21:16:04
37.82 14.25 13 2019-03-15
21:34:17
Sala Sismica INGV-Roma 66567531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-15 21:16:04 ± 0.43
Latitude 37.82 ± 0.02
Longitude 14.25 ± 0.03
Depth (km) 13 ± 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66567531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2680
Semi-minor axis of confidence ellipse (meter) 1583
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 2680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.63
Epicentral distance of station closest to the epicenter (degree) 0.18976
Epicentral distance of station farthest from the epicenter (degree) 0.4029
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 66567531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-15 21:34:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ALJA.HHE. 2019-03-15T21:16:20.22 0.6 undecidable manual S 259 0.4029 94 1.45 29
IV.GIB.HHE. 2019-03-15T21:16:14.61 1.0 undecidable manual S 313 0.2446 99 0.51 24
IV.PLLN.EHZ. 2019-03-15T21:16:13.06 0.3 undecidable manual S 332 0.1898 104 0.57 73
IV.ALJA.HHE. 2019-03-15T21:16:12.35 0.1 undecidable manual P 259 0.4029 94 -0.32 98
MN.VAE.HHE. 2019-03-15T21:16:12.45 0.3 undecidable manual P 168 0.3642 95 0.44 75
IV.CAGR.HHE. 2019-03-15T21:16:11.16 0.1 undecidable manual P 136 0.2806 97 0.57 100
IV.CSLB.HHZ. 2019-03-15T21:16:11.88 0.3 undecidable manual S 306 0.1916 104 -0.68 69
IV.GIB.HHE. 2019-03-15T21:16:11.08 0.6 undecidable manual P 313 0.2446 99 1.1 39
IV.GALF.HHZ. 2019-03-15T21:16:10.05 0.6 positive manual P 115 0.2716 97 -0.39 46
IV.PLLN.EHZ. 2019-03-15T21:16:08.32 0.1 undecidable manual P 332 0.1898 104 -0.73 87
IV.RESU.HHZ. 2019-03-15T21:16:08.88 0.3 negative manual P 221 0.2365 99 -0.97 58
IV.CSLB.HHZ. 2019-03-15T21:16:07.73 1.0 undecidable manual P 306 0.1916 104 -1.37 16
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.7 0.00020954815 0.3712 AML other m 2019-03-15T21:16:17.83
IV.CSLB.HHN. ML:0 4.198794E-5 0.3712 AML other m 2019-03-15T21:16:14.42
IV.CSLB.HHE. ML:0.9 4.7284065E-5 0.3328 AML other m 2019-03-15T21:16:13.34
IV.PLLN.EHN. ML:1.2 0.000100322165 0.2432 AML other m 2019-03-15T21:16:14.46
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