Earthquake with magnitude of ML 1.7 on date 09-02-2020 and time 09:36:35 (Italy) in region 8 km W Leonforte (EN)

A magnitude ML 1.7 earthquake occured in region: 8 km W Leonforte (EN), on

  • 09-02-2020 08:36:35 (UTC)
  • 09-02-2020 09:36:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.66, 14.31 at 39 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
Leonforte EN 8 13439 13439
Calascibetta EN 8 4528 17967
Enna EN 10 28019 45986
Assoro EN 11 5191 51177
Sperlinga EN 13 805 51982
Nissoria EN 13 3000 54982
Nicosia EN 13 13899 68881
Villarosa EN 14 4937 73818
Alimena PA 17 2032 75850
Gangi PA 18 6811 82661
Agira EN 19 8345 91006
Valguarnera Caropepe EN 19 7866 98872

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Caltanissetta (63360 inhabitants)
66 Km N of Gela (75827 inhabitants)
71 Km W of Catania (314555 inhabitants)
75 Km NE of Agrigento (59770 inhabitants)
76 Km W of Acireale (52622 inhabitants)
81 Km N of Vittoria (63339 inhabitants)
84 Km SE of Bagheria (55387 inhabitants)
90 Km NW of Ragusa (73313 inhabitants)
97 Km SE of Palermo (674435 inhabitants)
98 Km NW of Modica (54633 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 1.7 2020-02-09
08:36:35
37.66 14.31 39 2020-07-18
21:08:38
Bollettino Sismico Italiano INGV 79837771
Reviewed
Rev100
ML 0.8 2020-02-09
08:36:37
37.65 14.37 10 2020-02-09
09:59:23
Sala Sismica INGV-Roma 76370641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-09 08:36:35 ± 0.32
Latitude 37.66 ± 0.02
Longitude 14.31 ± 0.03
Depth (km) 39 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79837771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2280
Semi-minor axis of confidence ellipse (meter) 1567
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 2280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 15
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
Epicentral distance of station farthest from the epicenter (degree) 0.78781
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.8
Num. used stations 4
Type of magnitude ML
Reference to an origin 79837771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-02 22:35:39

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 76370641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-09 09:59:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-02-09T08:38:13.14 3.0 undecidable manual Pg 11.75 0
IV.VTIR.HHZ. 2020-02-09T08:38:08.30 3.0 undecidable manual Sn 0.73 0
IV.SPS2.HHZ. 2020-02-09T08:37:56.47 3.0 undecidable manual Sg 8.78 0
IV.VBKN.HHZ. 2020-02-09T08:37:35.66 3.0 positive manual Pg 9.28 0
IV.SGTA.HNZ. 2020-02-09T08:37:29.35 3.0 undecidable manual Pn -2.93 0
IV.VTIR.HHZ. 2020-02-09T08:37:27.39 3.0 negative manual Pg 1.35 0
IV.SPS2.HHZ. 2020-02-09T08:37:14.51 3.0 positive manual Pg -0.36 0
IV.SSY.HHZ. 2020-02-09T08:37:02.38 0.6 undecidable manual S 129 0.7878 92 0.51 43
IV.HAGA.HHZ. 2020-02-09T08:37:01.39 0.6 undecidable manual S 119 0.7698 92 -0.03 49
IV.HLNI.HHZ. 2020-02-09T08:36:55.34 0.6 undecidable manual S 125 0.545 94 -0.72 44
IV.RAFF.HHZ. 2020-02-09T08:36:54.45 0.6 undecidable manual S 174 0.438 102 0.92 46
IV.HAGA.HHZ. 2020-02-09T08:36:51.41 0.6 undecidable manual P 119 0.7698 92 0.83 37
IV.CSLB.HHE. 2020-02-09T08:36:51.73 0.6 undecidable manual S 325 0.3408 116 0.4 51
IV.SSY.HHZ. 2020-02-09T08:36:50.41 0.1 undecidable manual P 129 0.7878 92 -0.43 92
IV.PETRA.HHZ. 2020-02-09T08:36:49.32 0.6 undecidable manual S 319 0.2311 134 0.12 54
IV.MUCR.HHE. 2020-02-09T08:36:48.26 0.3 undecidable manual P 49 0.59 93 0.16 71
IV.MSFR.HHE. 2020-02-09T08:36:46.38 0.3 undecidable manual P 31 0.4371 102 0.38 70
IV.HLNI.HHZ. 2020-02-09T08:36:46.42 0.1 undecidable manual P 125 0.545 94 -1.06 76
IV.RAFF.HHZ. 2020-02-09T08:36:45.88 0.1 undecidable manual P 174 0.438 102 -0.14 100
IV.CSLB.HHE. 2020-02-09T08:36:44.30 0.3 undecidable manual P 325 0.3408 116 -0.45 74
IV.PETRA.HHZ. 2020-02-09T08:36:43.11 0.1 undecidable manual P 319 0.2311 134 -0.41 99
IV.CAGR.HHE. 2020-02-09T08:36:43.45 0.3 undecidable manual P 103 0.1574 148 0.57 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:1.1 3.755E-5 0.86 AML other m 2020-02-09T08:36:50.51
IV.PETRA.HHE. ML:0.9 2.625E-5 1.6 AML other m 2020-02-09T08:36:50.87
IV.SSY.HHE. ML:2.3 0.0001995 1.34 AML other m 2020-02-09T08:37:03.69
IV.SSY.HHN. ML:2.6 0.000443 1.52 AML other m 2020-02-09T08:37:04.05
IV.VTIR.HHN. ML:3.6 0.000308 0.06 AML other m 2020-02-09T08:37:37.62
IV.VTIR.HHE. ML:3.4 0.0002065 0.9 AML other m 2020-02-09T08:37:38.48
IV.SPS2.HHE. ML:1.8 8.25E-6 0.28 AML other m 2020-02-09T08:38:11.80
IV.SPS2.HHN. ML:1.9 1.495E-5 0.28 AML other m 2020-02-09T08:38:16.14
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