Earthquake with magnitude of ML 1.8 on date 08-09-2019 and time 18:40:15 (Italy) in region 3 km W Francofonte (SR)

A magnitude ML 1.8 earthquake occured in region: 3 km W Francofonte (SR), on

  • 08-09-2019 16:40:15 (UTC)
  • 08-09-2019 18:40:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2310, 14.8450 at 11 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
Francofonte SR 3 12800 12800
Militello in Val di Catania CT 7 7443 20243
Scordia CT 7 17095 37338
Vizzini CT 12 6241 43579
Buccheri SR 12 1999 45578
Palagonia CT 14 16608 62186
Mineo CT 14 5159 67345
Lentini SR 15 24085 91430
Licodia Eubea CT 15 3081 94511
Ferla SR 15 2523 97034
Carlentini SR 16 17798 114832
Buscemi SR 17 1051 115883
Cassaro SR 17 821 116704
Monterosso Almo RG 17 3032 119736
Sortino SR 18 8690 128426
Grammichele CT 18 13418 141844
Palazzolo Acreide SR 19 8808 150652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Ragusa (73313 inhabitants)
37 Km SW of Catania (314555 inhabitants)
41 Km NE of Vittoria (63339 inhabitants)
42 Km N of Modica (54633 inhabitants)
44 Km W of Siracusa (122291 inhabitants)
51 Km SW of Acireale (52622 inhabitants)
56 Km E of Gela (75827 inhabitants)
75 Km E of Caltanissetta (63360 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 1.8 2019-09-08
16:40:15
37.2312 14.8453 11 2020-02-28
16:41:54
Bollettino Sismico Italiano INGV 73018481
Reviewed
Rev100
ML 1.8 2019-09-08
16:40:15
37.2255 14.8467 10 2019-09-08
16:53:08
Sala Sismica INGV-Roma 72232341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-08 16:40:15 ± 0.13
Latitude 37.2312 ± 0.0081
Longitude 14.8453 ± 0.0079
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73018481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 875
Semi-minor axis of confidence ellipse (meter) 708
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59175
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 73018481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-03 12:18:29

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 72232341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-08 16:53:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.PPL1.HGE. 2019-09-08T16:40:35.75 0.3 undecidable manual S 157 65.6898 50 0.36 66
IV.HPAC.HHE. 2019-09-08T16:40:34.06 0.6 undecidable manual S 164 60.3951 50 0.07 47
IV.RAFF.HHZ. 2019-09-08T16:40:30.06 0.1 undecidable manual S 269 42.624 50 0.81 80
IV.HPAC.HHE. 2019-09-08T16:40:26.11 0.3 undecidable manual P 164 60.3951 50 0.02 71
IT.PPL1.HGE. 2019-09-08T16:40:26.27 0.1 undecidable manual P 157 65.6898 50 -0.63 81
IV.GALF.HHE. 2019-09-08T16:40:26.49 3.0 undecidable manual P 0.47 0
IV.HAGA.HHZ. 2019-09-08T16:40:25.42 0.1 undecidable manual S 78 27.9498 50 0.09 100
IV.SSY.HHZ. 2019-09-08T16:40:24.21 0.1 undecidable manual S 112 21.7671 50 0.54 90
IV.RAFF.HHZ. 2019-09-08T16:40:22.82 0.1 undecidable manual P 269 42.624 50 -0.54 87
IV.HLNI.HHZ. 2019-09-08T16:40:21.42 0.1 undecidable manual S 10 13.2756 129 0.24 99
IV.HVZN.HNZ. 2019-09-08T16:40:21.29 0.3 undecidable manual S 243 12.876 129 0.2 75
IV.HAGA.HHZ. 2019-09-08T16:40:20.90 0.1 undecidable manual P 78 27.9498 50 -0.2 97
IV.SSY.HHZ. 2019-09-08T16:40:19.94 0.1 negative manual P 112 21.7671 50 -0.19 98
IV.HVZN.HNZ. 2019-09-08T16:40:18.33 0.1 positive manual P 243 12.876 129 -0.31 97
IV.HLNI.HHZ. 2019-09-08T16:40:18.52 0.1 positive manual P 10 13.2756 129 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:2.0 0.0011459999999999999 0.14 AML other m 2019-09-08T16:40:21.62
IV.HLNI.HHN. ML:1.8 0.0007149999999999999 0.14 AML other m 2019-09-08T16:40:21.62
IV.SSY.HHE. ML:2.0 0.000606 0.5 AML other m 2019-09-08T16:40:25.25
IV.SSY.HHN. ML:2.4 0.0017349999999999998 0.96 AML other m 2019-09-08T16:40:25.68
IV.HAGA.HHN. ML:1.7 0.00027249999999999996 0.26 AML other m 2019-09-08T16:40:25.56
IV.HAGA.HHE. ML:1.6 0.000187 0.42 AML other m 2019-09-08T16:40:26.00
IV.RAFF.HHN. ML:1.8 0.000193 0.34 AML other m 2019-09-08T16:40:30.31
IV.RAFF.HHE. ML:1.5 0.00011235000000000001 0.52 AML other m 2019-09-08T16:40:30.29
IV.ISPIC.EHE. ML:2.0 0.00027100000000000003 1.5 AML other m 2019-09-08T16:40:30.93
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