Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 09-03-2020 and time 22:17:34 (UTC) in region 6 km SW Grammichele (CT)

A magnitude ML 2.0 earthquake occured in region: 6 km SW Grammichele (CT), on

  • 09-03-2020 22:17:34 (UTC)
  • 09-03-2020 23:17:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.1700, 14.5960 at 19 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grammichele CT 6 13418 13418
Licodia Eubea CT 10 3081 16499
Mazzarrone CT 10 4078 20577
Caltagirone CT 11 38686 59263
Mineo CT 14 5159 64422
Vizzini CT 14 6241 70663
Monterosso Almo RG 17 3032 73695
Chiaramonte Gulfi RG 18 8238 81933
Acate RG 18 10954 92887
Niscemi CL 19 27558 120445
San Michele di Ganzaria CT 19 3245 123690

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of Vittoria (63339 inhabitants)
30 Km NW of Ragusa (73313 inhabitants)
33 Km E of Gela (75827 inhabitants)
38 Km NW of Modica (54633 inhabitants)
57 Km SW of Catania (314555 inhabitants)
59 Km SE of Caltanissetta (63360 inhabitants)
63 Km W of Siracusa (122291 inhabitants)
71 Km SW of Acireale (52622 inhabitants)
91 Km E of Agrigento (59770 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 2.0 2020-03-09
22:17:34		 37.17 14.5963 19 2020-07-18
21:08:26		 Bollettino Sismico Italiano INGV 77301841
Reviewed
Rev100 		ML 2.0 2020-03-09
22:17:34		 37.1663 14.599 23 2020-03-09
22:25:19		 Sala Sismica INGV-Roma 77163051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-09 22:17:34 ± 0.13
Latitude 37.1700 ± 0.0063
Longitude 14.5963 ± 0.0068
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77301841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 702
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.09533
Epicentral distance of station farthest from the epicenter (degree) 0.89932
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 77301841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 15:38:13

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 77163051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-09 22:25:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-03-09T22:17:51.86 0.3 undecidable manual P 14 99.8223 95 0.05 63
IV.HAGA.HHZ. 2020-03-09T22:17:51.57 0.6 undecidable manual S 75 51.0156 102 0.34 44
IV.SSY.HHZ. 2020-03-09T22:17:49.93 0.6 undecidable manual S 92 42.2244 105 0.97 36
IV.PETRA.HHZ. 2020-03-09T22:17:49.70 0.3 undecidable manual P 330 84.9483 96 0.19 63
IT.LNT.HGE. 2020-03-09T22:17:48.17 0.3 undecidable manual S 70 38.2284 107 0.25 69
MN.VAE.HHE. 2020-03-09T22:17:47.66 0.3 undecidable manual S 327 39.5271 106 -0.6 63
IV.CROCE.HHZ. 2020-03-09T22:17:47.85 0.3 undecidable manual S 188 37.8288 107 0.03 72
IV.GALF.HHZ. 2020-03-09T22:17:46.02 0.1 undecidable manual P 358 59.9955 100 0.31 86
IV.HPAC.HHZ. 2020-03-09T22:17:46.27 0.3 undecidable manual P 142 64.3911 99 -0.11 67
IT.GEA.HGE. 2020-03-09T22:17:45.97 0.3 undecidable manual S 243 27.9498 115 0.61 64
IV.HLNI.HHZ. 2020-03-09T22:17:45.85 0.3 undecidable manual S 51 31.3464 112 -0.35 68
IV.CLTA.HHZ. 2020-03-09T22:17:45.19 0.1 undecidable manual P 269 56.0994 101 0.07 91
IV.CPTP.HHZ. 2020-03-09T22:17:44.22 0.1 undecidable manual P 305 46.5201 103 0.55 83
IV.MEU.EHZ. 2020-03-09T22:17:44.54 0.3 undecidable manual S 107 21.6672 123 0.64 65
IV.ACATE.HNZ. 2020-03-09T22:17:43.44 0.6 undecidable manual S 208 18.2706 129 0.27 47
MN.VAE.HHE. 2020-03-09T22:17:43.25 0.1 undecidable manual P 327 39.5271 106 0.62 81
IV.RAFF.HHZ. 2020-03-09T22:17:43.34 0.3 undecidable manual S 286 21.4674 123 -0.51 67
IV.HAGA.HHZ. 2020-03-09T22:17:43.94 0.1 undecidable manual P 75 51.0156 102 -0.41 86
IV.CROCE.HHZ. 2020-03-09T22:17:42.02 0.3 undecidable manual P 188 37.8288 107 -0.36 67
IT.LNT.HGE. 2020-03-09T22:17:42.08 0.1 undecidable manual P 70 38.2284 107 -0.35 89
IV.SSY.HHZ. 2020-03-09T22:17:42.98 0.1 undecidable manual P 92 42.2244 105 -0.05 94
IV.HVZN.HHE. 2020-03-09T22:17:41.75 0.1 undecidable manual S 85 10.5783 146 -0.02 99
IV.MEU.EHZ. 2020-03-09T22:17:40.34 0.3 positive manual P 107 21.6672 123 0.23 71
IT.GEA.HGE. 2020-03-09T22:17:40.55 0.1 undecidable manual P 243 27.9498 115 -0.41 90
IV.HLNI.HHZ. 2020-03-09T22:17:40.99 0.1 positive manual P 51 31.3464 112 -0.45 89
IV.RAFF.HHZ. 2020-03-09T22:17:39.84 0.1 positive manual P 286 21.4674 123 -0.24 94
IV.ACATE.HNZ. 2020-03-09T22:17:39.39 0.1 undecidable manual P 208 18.2706 129 -0.3 93
IV.HVZN.HHE. 2020-03-09T22:17:38.87 0.1 undecidable manual P 85 10.5783 146 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ACATE.HNE. ML:2.1 0.000755 0.38 AML other m 2020-03-09T22:17:43.76
IV.ACATE.EHE. ML:2.0 0.000655 0.28 AML other m 2020-03-09T22:17:43.76
IV.ACATE.EHN. ML:1.9 0.00044899999999999996 1.66 AML other m 2020-03-09T22:17:43.94
IV.MEU.EHE. ML:1.8 0.0003055 1.58 AML other m 2020-03-09T22:17:45.05
IV.ACATE.HNN. ML:1.9 0.0005115 0.94 AML other m 2020-03-09T22:17:46.23
IV.HLNI.HHE. ML:2.1 0.0005325 0.28 AML other m 2020-03-09T22:17:46.32
IV.HLNI.HHN. ML:2.2 0.000625 0.12 AML other m 2020-03-09T22:17:46.33
IV.MEU.EHN. ML:1.8 0.000386 0.96 AML other m 2020-03-09T22:17:48.93
IV.SSY.HHE. ML:2.2 0.0005074999999999999 0.7 AML other m 2020-03-09T22:17:51.63
IV.HAGA.HHN. ML:1.7 0.00010980000000000001 0.28 AML other m 2020-03-09T22:17:51.69
IV.SSY.HHN. ML:2.5 0.000892 0.62 AML other m 2020-03-09T22:17:52.67
IV.HPAC.HHN. ML:2.2 0.00029049999999999996 0.66 AML other m 2020-03-09T22:17:56.81
IV.HAGA.HHE. ML:1.6 0.00009425 0.44 AML other m 2020-03-09T22:17:57.98
IV.HPAC.HHE. ML:2.1 0.00020600000000000002 1.32 AML other m 2020-03-09T22:17:58.77
IV.MUCR.HHE. ML:2.0 0.00009279999999999999 0.48 AML other m 2020-03-09T22:18:05.70
IV.MUCR.HHN. ML:1.8 0.00006235 0.52 AML other m 2020-03-09T22:18:07.01
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
Waveforms Seismic signals in miniseed + resp format Download