Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 09-10-2018 and time 07:26:42 (Italy) in region 10 km N Ragalna (CT)

A magnitude ML 2.0 earthquake occured in region: 10 km N Ragalna (CT), on

  • 09-10-2018 05:26:42 (UTC)
  • 09-10-2018 07:26:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7170, 14.9440 at 28 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
Ragalna CT 10 3924 3924
Biancavilla CT 11 24007 27931
Adrano CT 11 36122 64053
Santa Maria di Licodia CT 12 7641 71694
Bronte CT 13 19172 90866
Nicolosi CT 14 7463 98329
Belpasso CT 14 28108 126437
Maletto CT 14 3920 130357
Zafferana Etnea CT 14 9517 139874
Pedara CT 15 14102 153976
Milo CT 15 1087 155063
Paternò CT 16 48228 203291
Trecastagni CT 16 10910 214201
Camporotondo Etneo CT 18 5023 219224
San Pietro Clarenza CT 18 7743 226967
Santa Venerina CT 18 8592 235559
Viagrande CT 18 8563 244122
Randazzo CT 18 10900 255022
Sant'Alfio CT 18 1582 256604
Mascalucia CT 19 31958 288562
Tremestieri Etneo CT 19 20589 309151
Aci Bonaccorsi CT 20 3524 312675

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
76 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Gela (75827 inhabitants)
97 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 2.0 2018-10-09
05:26:42		 37.7173 14.9435 28 2019-06-04
09:16:15		 Bollettino Sismico Italiano INGV 68305401
Reviewed
Rev100 		ML 2.0 2018-10-09
05:26:42		 37.7163 14.9473 29 2018-10-09
05:34:16		 Sala Sismica INGV-Roma 61759541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-09 05:26:42 ± 0.15
Latitude 37.7173 ± 0.0063
Longitude 14.9435 ± 0.0114
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68305401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1002
Semi-minor axis of confidence ellipse (meter) 265
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.76802
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 61759541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-09 05:34:16

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 68305401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-06 12:32:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2018-10-09T05:27:08.29 0.6 undecidable manual S 190 85.248 103 0.31 47
IV.SSY.HHZ. 2018-10-09T05:27:02.64 0.6 undecidable manual S 169 63.0924 109 0.36 48
IV.HAGA.HHZ. 2018-10-09T05:26:59.50 1.0 undecidable manual S 159 51.4152 113 0.14 26
IV.HMDC.HHZ. 2018-10-09T05:26:57.50 0.3 undecidable manual P 190 85.248 103 0.41 68
IV.MUCR.HHZ. 2018-10-09T05:26:56.09 0.6 undecidable manual S 350 36.6411 122 0.23 50
IV.MNO.SHZ. 2018-10-09T05:26:55.51 0.6 undecidable manual S 318 32.1456 126 0.63 45
IV.RAFF.HHZ. 2018-10-09T05:26:55.61 0.3 undecidable manual P 223 75.0693 105 0.05 74
IV.GALF.HHZ. 2018-10-09T05:26:55.29 0.6 undecidable manual S 269 33.0447 125 0.22 51
IV.SSY.HHZ. 2018-10-09T05:26:53.69 0.3 undecidable manual P 169 63.0924 109 -0.11 74
IV.ESML.HHZ. 2018-10-09T05:26:51.52 0.3 undecidable manual S 207 12.3765 154 0.11 83
IV.HAGA.HHZ. 2018-10-09T05:26:51.87 0.3 undecidable manual P 159 51.4152 113 -0.25 73
IV.EPZF.HHZ. 2018-10-09T05:26:51.76 0.6 undecidable manual S 327 14.0748 151 0.14 54
IV.MUCR.HHZ. 2018-10-09T05:26:50.02 0.3 undecidable manual P 350 36.6411 122 -0.07 80
IV.NOV.HNZ. 2018-10-09T05:26:50.68 0.3 undecidable manual P 26 38.3283 121 0.36 74
IV.GALF.HHZ. 2018-10-09T05:26:49.17 0.3 undecidable manual P 269 33.0447 125 -0.47 73
IV.MNO.SHZ. 2018-10-09T05:26:49.30 0.3 undecidable manual P 318 32.1456 126 -0.22 78
IV.EPZF.HHZ. 2018-10-09T05:26:47.12 0.1 undecidable manual P 327 14.0748 151 -0.53 100
IV.EMCN.HNZ. 2018-10-09T05:26:47.24 0.6 undecidable manual P 44 11.3775 156 -0.22 53
IV.ESML.HHZ. 2018-10-09T05:26:47.42 0.6 undecidable manual P 207 12.3765 154 -0.1 54
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHE. ML:2.0 0.0005275000000000001 0.68 AML other m 2018-10-09T05:26:51.56
IV.EPZF.HHE. ML:2.4 0.001365 0.46 AML other m 2018-10-09T05:26:52.30
IV.ESML.HHN. ML:1.8 0.000313 0.22 AML other m 2018-10-09T05:26:52.54
IV.EPZF.HHN. ML:2.0 0.000527 0.36 AML other m 2018-10-09T05:26:52.61
IV.MNO.SHE. ML:0.0 0.0001305 0.96 AML other m 2018-10-09T05:26:56.08
IV.MNO.SHN. ML:0.0 0.00011830000000000002 1.4 AML other m 2018-10-09T05:26:57.72
IV.GALF.HHN. ML:1.7 0.0001625 1.58 AML other m 2018-10-09T05:26:57.90
IV.GALF.HHE. ML:1.8 0.0002135 0.34 AML other m 2018-10-09T05:26:57.49
IV.SSY.HHE. ML:2.2 0.000273 0.18 AML other m 2018-10-09T05:27:02.84
IV.SSY.HHN. ML:2.4 0.0004485 1.74 AML other m 2018-10-09T05:27:08.07
IV.HMDC.HHE. ML:2.0 0.00012805 0.32 AML other m 2018-10-09T05:27:09.46
IV.HMDC.HHN. ML:2.0 0.0001082 1.1 AML other m 2018-10-09T05:27:10.19
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