Earthquake with magnitude of ML 1.7 on date 18-02-2019 and time 02:11:38 (Italy) in region 1 km SW Nissoria (EN)

A magnitude ML 1.7 earthquake occured in region: 1 km SW Nissoria (EN), on

  • 18-02-2019 01:11:38 (UTC)
  • 18-02-2019 02:11:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.65, 14.44 at 47 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Nissoria EN 1 3000 3000
Assoro EN 3 5191 8191
Leonforte EN 5 13439 21630
Agira EN 7 8345 29975
Gagliano Castelferrato EN 11 3593 33568
Nicosia EN 12 13899 47467
Sperlinga EN 16 805 48272
Calascibetta EN 16 4528 52800
Enna EN 17 28019 80819
Valguarnera Caropepe EN 17 7866 88685
Regalbuto EN 17 7277 95962
Cerami EN 19 2006 97968

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Caltanissetta (63360 inhabitants)
59 Km W of Catania (314555 inhabitants)
64 Km W of Acireale (52622 inhabitants)
67 Km N of Gela (75827 inhabitants)
78 Km N of Vittoria (63339 inhabitants)
84 Km N of Ragusa (73313 inhabitants)
84 Km E of Agrigento (59770 inhabitants)
92 Km N of Modica (54633 inhabitants)
95 Km SE of Bagheria (55387 inhabitants)
99 Km NW of Siracusa (122291 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
Rev 1000 ML 1.7 2019-02-18
01:11:38
37.65 14.44 47 2019-08-22
08:24:50
Bollettino Sismico Italiano INGV 65764561
Rev 100 ML 1.6 2019-02-18
01:11:38
37.67 14.44 46 2019-02-18
01:20:51
Sala Sismica INGV-Roma 65646201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-18 01:11:38 ± 0.21
Latitude 37.65 ± 0.01
Longitude 14.44 ± 0.02
Depth (km) 47 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65764561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1382
Semi-minor axis of confidence ellipse (meter) 892
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.05036
Epicentral distance of station farthest from the epicenter (degree) 1.04861
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 65764561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-21 14:27:10

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 65646201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-18 01:20:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AGST.EHZ. 2019-02-18T01:12:04.00 0.3 undecidable manual S 122 0.7329 104 0.32 64
IV.MUCR.HHE. 2019-02-18T01:11:59.30 0.6 undecidable manual S 40 0.5225 114 0.4 44
IV.HPAC.HHZ. 2019-02-18T01:11:58.14 0.6 undecidable manual P 153 1.0486 97 0.74 35
IV.GIB.HHE. 2019-02-18T01:11:58.60 1.0 undecidable manual S 316 0.4766 117 0.68 20
IV.RAFF.HHZ. 2019-02-18T01:11:57.70 0.3 undecidable manual S 189 0.4281 122 0.8 57
IV.CSLB.HHE. 2019-02-18T01:11:57.20 0.6 undecidable manual S 314 0.4218 122 0.41 44
IV.HLNI.HHZ. 2019-02-18T01:11:56.90 0.3 undecidable manual S 131 0.4506 120 -0.47 65
IV.PLLN.EHE. 2019-02-18T01:11:56.90 1.0 undecidable manual S 326 0.4209 122 0.15 23
IV.PETRA.HHE. 2019-02-18T01:11:55.40 0.6 undecidable manual S 306 0.3211 133 0.54 43
IV.CROCE.HHZ. 2019-02-18T01:11:54.62 0.3 undecidable manual P 175 0.8157 101 0.4 61
IV.AGST.EHZ. 2019-02-18T01:11:53.07 0.3 undecidable manual P 122 0.7329 104 -0.03 67
IV.GALF.HHZ. 2019-02-18T01:11:52.00 0.3 undecidable manual S 56 0.1169 161 -0.16 74
IV.MUCR.HHE. 2019-02-18T01:11:50.55 0.3 undecidable manual P 40 0.5225 114 0.21 68
IV.GIB.HHE. 2019-02-18T01:11:49.46 0.3 undecidable manual P 316 0.4766 117 -0.32 67
IV.EPZF.HHZ. 2019-02-18T01:11:49.45 0.6 undecidable manual P 61 0.3723 127 0.9 38
IV.PLLN.EHE. 2019-02-18T01:11:48.74 0.3 undecidable manual P 326 0.4209 122 -0.36 67
IV.RAFF.HHZ. 2019-02-18T01:11:48.98 0.1 undecidable manual P 189 0.4281 122 -0.21 92
IV.ESML.HHE. 2019-02-18T01:11:48.52 0.3 undecidable manual P 94 0.3453 130 0.25 70
IV.CSLB.HHE. 2019-02-18T01:11:48.49 0.3 undecidable manual P 314 0.4218 122 -0.63 62
IV.HLNI.HHZ. 2019-02-18T01:11:48.78 0.3 undecidable manual P 131 0.4506 120 -0.68 60
IV.PETRA.HHE. 2019-02-18T01:11:47.63 0.6 undecidable manual P 306 0.3211 133 -0.38 46
IV.CAGR.HHE. 2019-02-18T01:11:46.05 0.1 undecidable manual P 118 0.0504 172 -0.18 100
IV.GALF.HHZ. 2019-02-18T01:11:45.93 0.3 undecidable manual P 56 0.1169 161 -0.52 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:1.7 0.00013136935 0.3 AML other m 2019-02-18T01:11:53.44
IV.GALF.HHE. ML:1.7 0.0001479387 0.32 AML other m 2019-02-18T01:11:53.03
IV.HLNI.HHE. ML:1.3 3.6363405E-5 0.1 AML other m 2019-02-18T01:11:57.79
IV.HLNI.HHN. ML:1.3 3.3634575E-5 0.08 AML other m 2019-02-18T01:11:57.51
IV.RAFF.HHE. ML:1.8 0.00010409667 0.24 AML other m 2019-02-18T01:11:58.00
IV.RAFF.HHN. ML:1.5 5.5420065E-5 0.24 AML other m 2019-02-18T01:11:58.19
IV.AGST.EHN. ML:2.1 0.0001373356 1.08 AML other m 2019-02-18T01:12:04.08
IV.CROCE.HHE. ML:1.8 6.3904555E-5 0.2 AML other m 2019-02-18T01:12:06.72
IV.CROCE.HHN. ML:1.6 4.224566E-5 0.18 AML other m 2019-02-18T01:12:07.25
IV.HPAC.HHE. ML:2 7.5578375E-5 0.64 AML other m 2019-02-18T01:12:17.74
IV.AGST.EHE. ML:1.8 6.9066365E-5 0.1 AML other m 2019-02-18T01:12:04.77
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