Earthquake with magnitude of ML 1.6 on date 31-08-2019 and time 00:48:10 (Italy) in region 5 km E San Michele di Ganzaria (CT)

A magnitude ML 1.6 earthquake occured in region: 5 km E San Michele di Ganzaria (CT), on

  • 30-08-2019 22:48:10 (UTC)
  • 31-08-2019 00:48:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.28, 14.48 at 10 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
San Michele di Ganzaria CT 5 3245 3245
Caltagirone CT 5 38686 41931
Mirabella Imbaccari CT 6 4912 46843
San Cono CT 10 2697 49540
Grammichele CT 15 13418 62958
Piazza Armerina EN 16 21886 84844
Aidone EN 16 4889 89733
Niscemi CL 17 27558 117291
Mineo CT 19 5159 122450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Gela (75827 inhabitants)
37 Km N of Vittoria (63339 inhabitants)
44 Km SE of Caltanissetta (63360 inhabitants)
45 Km NW of Ragusa (73313 inhabitants)
53 Km NW of Modica (54633 inhabitants)
59 Km W of Catania (314555 inhabitants)
71 Km SW of Acireale (52622 inhabitants)
76 Km W of Siracusa (122291 inhabitants)
79 Km E of Agrigento (59770 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 1.6 2019-08-30
22:48:10
37.28 14.48 10 2019-08-30
22:54:27
Sala Sismica INGV-Roma 71950751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-30 22:48:10 ± 0.15
Latitude 37.28 ± 0.01
Longitude 14.48 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71950751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 707
Semi-minor axis of confidence ellipse (meter) 432
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) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 24
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
Epicentral distance of station farthest from the epicenter (degree) 0.59895
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 71950751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-30 22:54:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2019-08-30T22:48:31.60 0.6 undecidable manual S 146 0.5989 50 0.55 41
IV.HAGA.HHZ. 2019-08-30T22:48:29.43 0.6 undecidable manual S 89 0.5351 50 0.26 45
IV.SSY.HHZ. 2019-08-30T22:48:28.65 0.6 undecidable manual S 104 0.4856 50 0.95 35
IV.MUCR.HHZ. 2019-08-30T22:48:27.22 3.0 undecidable manual P -0.23 0
IV.CROCE.HHZ. 2019-08-30T22:48:26.45 0.6 undecidable manual S 175 0.4452 50 -0.05 47
IV.GALF.HHZ. 2019-08-30T22:48:26.31 0.6 undecidable manual S 9 0.4398 50 -0.01 48
IV.CAGR.HHE. 2019-08-30T22:48:23.05 0.3 undecidable manual S 2 0.3462 50 -0.5 66
IV.ISPIC.EHZ. 2019-08-30T22:48:22.06 0.6 negative manual P 146 0.5989 50 -0.31 43
IV.HLNI.HHZ. 2019-08-30T22:48:22.86 0.6 undecidable manual S 77 0.3184 50 0.12 48
IV.CPTP.HHZ. 2019-08-30T22:48:22.05 0.1 undecidable manual S 297 0.286 50 0.28 93
IT.GEA.HGE. 2019-08-30T22:48:21.21 0.3 undecidable manual S 211 0.2572 50 0.29 70
IV.GALF.HHZ. 2019-08-30T22:48:20.47 0.6 undecidable manual P 9 0.4398 50 0.82 38
IV.ACATE.EHE. 2019-08-30T22:48:20.21 0.6 undecidable manual S 177 0.2527 50 -0.57 43
IV.HAGA.HHZ. 2019-08-30T22:48:20.80 1.0 undecidable manual P 89 0.5351 50 -0.49 21
IV.SSY.HHZ. 2019-08-30T22:48:20.33 1.0 positive manual P 104 0.4856 50 -0.11 23
IV.CROCE.HHZ. 2019-08-30T22:48:19.56 0.6 undecidable manual P 175 0.4452 50 -0.19 46
IV.HVZN.HHE. 2019-08-30T22:48:19.85 0.6 undecidable manual S 118 0.2104 112 0.57 44
IV.CPTP.HHZ. 2019-08-30T22:48:18.12 0.1 positive manual P 297 0.286 50 1.1 69
IV.HLNI.HHZ. 2019-08-30T22:48:17.17 0.1 positive manual P 77 0.3184 50 -0.41 90
IV.CAGR.HHE. 2019-08-30T22:48:17.34 0.1 undecidable manual P 2 0.3462 50 -0.7 81
IV.ACATE.EHE. 2019-08-30T22:48:16.14 0.1 undecidable manual P 177 0.2527 50 -0.31 93
IT.GEA.HGE. 2019-08-30T22:48:16.12 0.1 undecidable manual P 211 0.2572 50 -0.41 91
IV.HVZN.HHE. 2019-08-30T22:48:15.59 0.1 undecidable manual P 118 0.2104 112 0.01 100
IV.RAFF.HHZ. 2019-08-30T22:48:15.31 0.6 undecidable manual S 241 0.1088 128 -0.58 45
IV.RAFF.HHZ. 2019-08-30T22:48:13.94 0.1 negative manual P 241 0.1088 128 0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RAFF.HHN. ML:1.5 0.000359 0.24 AML other m 2019-08-30T22:48:17.91
IV.RAFF.HHE. ML:1.3 0.0002185 0.48 AML other m 2019-08-30T22:48:18.44
IV.HLNI.HHN. ML:2 0.00041 0.2 AML other m 2019-08-30T22:48:23.21
IV.HLNI.HHE. ML:1.7 0.000212 0.48 AML other m 2019-08-30T22:48:23.78
IV.CROCE.HHN. ML:1.4 7.045E-5 1.24 AML other m 2019-08-30T22:48:27.99
IV.CROCE.HHE. ML:1.3 5.225E-5 1.04 AML other m 2019-08-30T22:48:28.06
IV.SSY.HHE. ML:1.8 0.0001625 0.84 AML other m 2019-08-30T22:48:29.95
IV.GALF.HHN. ML:1.4 6.755E-5 0.6 AML other m 2019-08-30T22:48:31.41
IV.SSY.HHN. ML:2.2 0.000411 1.12 AML other m 2019-08-30T22:48:31.15
IV.ISPIC.EHE. ML:1.8 0.00011793 1.28 AML other m 2019-08-30T22:48:31.74
IV.ISPIC.EHN. ML:1.8 0.00010505 0.18 AML other m 2019-08-30T22:48:31.82
IV.HAGA.HHN. ML:1.7 9.565E-5 1.6 AML other m 2019-08-30T22:48:32.99
IV.HAGA.HHE. ML:1.6 8.915E-5 0.4 AML other m 2019-08-30T22:48:32.20
IV.GALF.HHE. ML:1.4 6.17E-5 0.34 AML other m 2019-08-30T22:48:33.87
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