Earthquake with magnitude of ML 1.8 on date 17-02-2020 and time 17:32:19 (UTC) in region 3 km NE Gagliano Castelferrato (EN)

A magnitude ML 1.8 earthquake occured in region: 3 km NE Gagliano Castelferrato (EN), on

  • 17-02-2020 17:32:19 (UTC)
  • 17-02-2020 18:32:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.73, 14.56 at 28 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
Gagliano Castelferrato EN 3 3593 3593
Troina EN 7 9373 12966
Agira EN 9 8345 21311
Cerami EN 10 2006 23317
Regalbuto EN 11 7277 30594
Nissoria EN 13 3000 33594
Nicosia EN 15 13899 47493
Capizzi ME 15 3176 50669
Assoro EN 17 5191 55860
San Teodoro ME 18 1403 57263
CesarĂ² ME 18 2439 59702
Leonforte EN 18 13439 73141
Sperlinga EN 19 805 73946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km NE of Caltanissetta (63360 inhabitants)
53 Km NW of Catania (314555 inhabitants)
55 Km W of Acireale (52622 inhabitants)
79 Km NE of Gela (75827 inhabitants)
87 Km N of Vittoria (63339 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
98 Km NE of Agrigento (59770 inhabitants)
99 Km N of Modica (54633 inhabitants)
99 Km NW of Siracusa (122291 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 1.8 2020-02-17
17:32:19
37.73 14.56 28 2020-02-17
17:54:41
Sala Sismica INGV-Roma 76606051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-17 17:32:19 ± 0.35
Latitude 37.73 ± 0.01
Longitude 14.56 ± 0.02
Depth (km) 28 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76606051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1778
Semi-minor axis of confidence ellipse (meter) 763
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 1780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.70417
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 76606051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-17 17:54:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-02-17T17:32:44.17 0.3 undecidable manual S 145 0.7042 104 0.4 63
IV.HLNI.HHZ. 2020-02-17T17:32:36.17 0.6 undecidable manual S 147 0.456 113 -0.63 42
IV.MUCR.HHZ. 2020-02-17T17:32:34.47 0.6 undecidable manual S 38 0.3948 117 -0.68 41
IV.SSY.HHZ. 2020-02-17T17:32:33.56 0.6 negative manual P 145 0.7042 104 -0.12 45
IV.MSFR.HHZ. 2020-02-17T17:32:33.29 0.6 undecidable manual S 4 0.3013 125 0.53 45
IV.EPZF.HHZ. 2020-02-17T17:32:32.05 0.3 undecidable manual S 69 0.2491 131 0.51 68
IV.RAFF.HHZ. 2020-02-17T17:32:30.48 0.1 undecidable manual P 197 0.5351 109 -0.43 87
IV.HLNI.HHZ. 2020-02-17T17:32:29.59 0.3 negative manual P 147 0.456 113 -0.06 72
IV.MUCR.HHZ. 2020-02-17T17:32:28.39 0.3 positive manual P 38 0.3948 117 -0.31 69
IV.MSFR.HHZ. 2020-02-17T17:32:27.33 0.3 positive manual P 4 0.3013 125 0.01 74
IV.GALF.HHZ. 2020-02-17T17:32:27.76 0.6 undecidable manual S 173 0.0234 174 -0.51 46
IV.CAGR.HHZ. 2020-02-17T17:32:26.27 0.1 undecidable manual P 204 0.1223 151 1.03 76
IV.EPZF.HHZ. 2020-02-17T17:32:26.68 0.1 undecidable manual P 69 0.2491 131 0.06 100
IV.GALF.HHZ. 2020-02-17T17:32:24.36 0.3 negative manual P 173 0.0234 174 -0.37 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:2.1 0.000684 1.1 AML other m 2020-02-17T17:32:30.27
IV.GALF.HHN. ML:2.1 0.000671 0.32 AML other m 2020-02-17T17:32:31.30
IV.MSFR.HHE. ML:1.3 5.9E-5 0.64 AML other m 2020-02-17T17:32:33.39
IV.MSFR.HHN. ML:1.3 6.51E-5 0.88 AML other m 2020-02-17T17:32:35.00
IV.MUCR.HHN. ML:1.8 0.0001485 0.64 AML other m 2020-02-17T17:32:35.09
IV.MUCR.HHE. ML:1.8 0.000153 0.52 AML other m 2020-02-17T17:32:35.61
IV.HLNI.HHN. ML:1.6 8.94E-5 1.2 AML other m 2020-02-17T17:32:38.22
IV.HLNI.HHE. ML:1.6 8.385E-5 0.2 AML other m 2020-02-17T17:32:39.73
IV.RAFF.HHN. ML:1.7 8.815E-5 0.86 AML other m 2020-02-17T17:32:45.66
IV.RAFF.HHE. ML:1.8 0.00011125 1.44 AML other m 2020-02-17T17:32:45.25
IV.SSY.HHE. ML:2.4 0.000312 0.86 AML other m 2020-02-17T17:32:45.43
IV.SSY.HHN. ML:2.5 0.0004205 1.08 AML other m 2020-02-17T17:32:47.18
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