Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-05-2020 and time 20:56:51 (UTC) in region 10 km SE Bronte (CT)

A magnitude ML 1.2 earthquake occured in region: 10 km SE Bronte (CT), on

  • 09-05-2020 20:56:51 (UTC)
  • 09-05-2020 22:56:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 14.9230 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bronte CT 10 19172 19172
Adrano CT 11 36122 55294
Maletto CT 12 3920 59214
Biancavilla CT 12 24007 83221
Ragalna CT 12 3924 87145
Santa Maria di Licodia CT 14 7641 94786
Randazzo CT 16 10900 105686
Nicolosi CT 16 7463 113149
Zafferana Etnea CT 17 9517 122666
Belpasso CT 17 28108 150774
Milo CT 17 1087 151861
Maniace CT 17 3765 155626
Paternò CT 18 48228 203854
Pedara CT 18 14102 217956
Trecastagni CT 19 10910 228866
Sant'Alfio CT 20 1582 230448
Santa Venerina CT 20 8592 239040

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Acireale (52622 inhabitants)
30 Km NW of Catania (314555 inhabitants)
75 Km SW of Messina (238439 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
94 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Gela (75827 inhabitants)
99 Km N 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 1.2 2020-05-09
20:56:51		 37.7373 14.9228 11 2020-11-19
12:36:45		 Bollettino Sismico Italiano INGV 79326021
Reviewed
Rev200 		ML 1.3 2020-05-09
20:56:50		 37.729 14.935 8 2020-08-06
13:29:40		 Sala Operativa INGV_OE (Catania) 78993681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-09 20:56:51 ± 0.08
Latitude 37.7373 ± 0.0036
Longitude 14.9228 ± 0.0068
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79326021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 568
Semi-minor axis of confidence ellipse (meter) 349
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.33815
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 79326021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-19 13:51:36

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 78993681
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-05-09 21:08:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-05-09T20:57:03.05 0.6 undecidable manual S 353 34.1436 50 -0.01 65
IV.ECTS.HHZ. 2020-05-09T20:57:00.48 0.3 undecidable manual S 47 23.6541 50 0.22 95
IV.MUCR.HHZ. 2020-05-09T20:56:58.16 0.3 undecidable manual P 353 34.1436 50 0.05 97
IV.AIO.HHZ. 2020-05-09T20:56:58.77 0.6 undecidable manual P 46 37.5291 50 0.14 63
IV.ENIC.HHZ. 2020-05-09T20:56:57.94 0.6 undecidable manual S 144 14.5743 126 0.36 62
IV.ESML.HHZ. 2020-05-09T20:56:57.69 0.3 undecidable manual S 196 13.7751 127 0.34 94
IV.GALF.HHZ. 2020-05-09T20:56:57.91 0.6 undecidable manual P 265 31.4463 50 0.22 62
IV.EPIT.HHZ. 2020-05-09T20:56:57.77 0.6 undecidable manual S 55 14.2746 126 0.28 64
IV.EMSG.HHZ. 2020-05-09T20:56:56.53 0.3 undecidable manual S 14 9.5793 138 0.27 96
IV.EPZF.HHZ. 2020-05-09T20:56:56.84 0.3 undecidable manual S 329 11.1777 133 0.18 98
IV.ECTS.HHZ. 2020-05-09T20:56:56.12 0.6 undecidable manual P 47 23.6541 50 -0.37 61
IV.ESLN.HHZ. 2020-05-09T20:56:55.51 0.6 undecidable manual S 137 6.6933 147 -0.14 66
IV.ECHR.HNZ. 2020-05-09T20:56:55.60 0.3 undecidable manual S 189 5.6943 151 0.12 100
IV.ESML.HHZ. 2020-05-09T20:56:54.61 0.6 undecidable manual P 196 13.7751 127 -0.2 65
IV.EPIT.HHZ. 2020-05-09T20:56:54.70 0.6 undecidable manual P 55 14.2746 126 -0.19 65
IV.ENIC.HHZ. 2020-05-09T20:56:54.96 0.6 undecidable manual P 144 14.5743 126 0.02 67
IV.EMCN.HNZ. 2020-05-09T20:56:54.20 0.6 undecidable manual P 58 11.3775 133 -0.24 64
IV.EPZF.HHZ. 2020-05-09T20:56:54.20 0.3 undecidable manual P 329 11.1777 133 -0.21 97
IV.ESLN.HHZ. 2020-05-09T20:56:53.45 0.6 undecidable manual P 137 6.6933 147 -0.37 63
IV.ECHR.HNZ. 2020-05-09T20:56:53.36 0.3 undecidable manual P 189 5.6943 151 -0.37 95
IV.EMSG.HHZ. 2020-05-09T20:56:53.94 0.3 undecidable manual P 14 9.5793 138 -0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:1.4 0.0003045 0.34 AML other m 2020-05-09T20:56:58.06
IV.EPZF.HHN. ML:1.5 0.000378 0.28 AML other m 2020-05-09T20:56:58.73
IV.ESML.HHE. ML:1.2 0.00015949999999999997 0.52 AML other m 2020-05-09T20:57:01.69
IV.ENIC.HHE. ML:1.5 0.0002825 1.86 AML other m 2020-05-09T20:57:01.00
IV.ENIC.HHN. ML:1.4 0.00023549999999999998 1.32 AML other m 2020-05-09T20:57:02.18
IV.ESML.HHN. ML:1.3 0.00021100000000000003 1.48 AML other m 2020-05-09T20:57:02.17
IV.ECTS.HHN. ML:1.2 0.00009615000000000002 0.4 AML other m 2020-05-09T20:57:03.29
IV.ECTS.HHE. ML:1.2 0.00010819999999999999 0.22 AML other m 2020-05-09T20:57:03.55
IV.AIO.HHE. ML:0.9 0.0000283 1.02 AML other m 2020-05-09T20:57:05.44
IV.MUCR.HHE. ML:1.0 0.0000409 0.72 AML other m 2020-05-09T20:57:06.23
IV.AIO.HHN. ML:1.0 0.00003345 0.52 AML other m 2020-05-09T20:57:06.71
IV.GALF.HHE. ML:1.3 0.00008415 1.52 AML other m 2020-05-09T20:57:09.87
IV.MUCR.HHN. ML:0.9 0.000036049999999999995 0.56 AML other m 2020-05-09T20:57:11.58
IV.GALF.HHN. ML:1.4 0.00011800000000000001 1.44 AML other m 2020-05-09T20:57:11.98
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