Earthquake with magnitude of ML 2.3 on date 09-02-2018 and time 05:15:48 (Italy) in region 6 km NE Ragalna (CT)

A magnitude ML 2.3 earthquake occured in region: 6 km NE Ragalna (CT), on

  • 09-02-2018 04:15:48 (UTC)
  • 09-02-2018 05:15:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6810, 14.9630 at 1 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
Ragalna CT 6 3924 3924
Biancavilla CT 9 24007 27931
Nicolosi CT 9 7463 35394
Santa Maria di Licodia CT 10 7641 43035
Belpasso CT 10 28108 71143
Pedara CT 11 14102 85245
Adrano CT 12 36122 121367
Trecastagni CT 12 10910 132277
Zafferana Etnea CT 13 9517 141794
PaternĂ² CT 13 48228 190022
Camporotondo Etneo CT 13 5023 195045
San Pietro Clarenza CT 13 7743 202788
Viagrande CT 14 8563 211351
Milo CT 14 1087 212438
Mascalucia CT 14 31958 244396
Tremestieri Etneo CT 15 20589 264985
Santa Venerina CT 16 8592 273577
Aci Bonaccorsi CT 16 3524 277101
Gravina di Catania CT 16 25838 302939
San Giovanni la Punta CT 16 23060 325999
Bronte CT 17 19172 345171
Aci Sant'Antonio CT 17 17984 363155
Sant'Agata li Battiati CT 17 9479 372634
Sant'Alfio CT 18 1582 374216
Aci Catena CT 18 29851 404067
San Gregorio di Catania CT 18 11966 416033
Misterbianco CT 18 49410 465443
Valverde CT 18 7840 473283
Motta Sant'Anastasia CT 19 12116 485399
Maletto CT 19 3920 489319
Acireale CT 20 52622 541941

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Acireale (52622 inhabitants)
23 Km NW of Catania (314555 inhabitants)
75 Km NW of Siracusa (122291 inhabitants)
77 Km SW of Reggio di Calabria (183035 inhabitants)
77 Km SW of Messina (238439 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
86 Km N of Ragusa (73313 inhabitants)
90 Km NE of Vittoria (63339 inhabitants)
93 Km NE of Gela (75827 inhabitants)
93 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 2.3 2018-02-09
04:15:48
37.681 14.9632 1 2019-04-24
14:49:45
Bollettino Sismico Italiano INGV 65024161
Reviewed
Rev200
ML 2.1 2018-02-09
04:15:47
37.693 14.931 0 2019-01-28
13:30:21
Sala Operativa INGV-OE (Catania) 53776821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-09 04:15:48 ± 0.3
Latitude 37.6810 ± 0.0171
Longitude 14.9632 ± 0.0205
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65024161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2210
Semi-minor axis of confidence ellipse (meter) 1430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 2210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.45865
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:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 65024161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-28 13:29:58

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 53776821
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-02-09 04:37:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSFR.HHZ. 2018-02-09T04:15:58.70 1.0 undecidable manual P 320 50.9157 91 -0.31 22
IV.CAGR.HHE. 2018-02-09T04:15:58.64 0.6 undecidable manual P 261 41.2254 91 1.57 26
IV.NOV.HHZ. 2018-02-09T04:15:57.02 0.3 undecidable manual P 22 41.3253 91 -0.08 72
IV.GALF.HHZ. 2018-02-09T04:15:56.75 0.6 undecidable manual P 276 34.9428 92 0.93 37
IV.AIO.HHE. 2018-02-09T04:15:56.77 0.3 undecidable manual P 36 39.9267 91 -0.04 72
IV.MUCR.HHE. 2018-02-09T04:15:56.14 0.3 undecidable manual P 349 40.9257 91 -0.87 56
IV.EPOZ.HHZ. 2018-02-09T04:15:53.48 0.3 undecidable manual P 93 19.7691 93 0.7 63
IV.EPZF.HHZ. 2018-02-09T04:15:52.55 0.1 undecidable manual P 330 18.3705 93 0.05 100
IV.EMSG.HHZ. 2018-02-09T04:15:52.40 0.1 undecidable manual P 356 15.5733 94 0.47 92
IV.ESML.HHZ. 2018-02-09T04:15:50.20 0.1 negative manual P 227 10.1787 96 -0.65 87
IV.ESLN.HHZ. 2018-02-09T04:15:49.83 0.3 undecidable manual S 36 1.6983 121 0.34 73
IV.ESLN.HHZ. 2018-02-09T04:15:48.32 0.1 undecidable manual P 36 1.6983 121 -0.88 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.7 0.0056099999999999995 0.42 AML other m 2018-02-09T04:16:00.57
IV.EPOZ.HHE. ML:1.7 0.000413 1.14 AML other m 2018-02-09T04:16:01.60
IV.EMSG.HHE. ML:2.7 0.00592 0.34 AML other m 2018-02-09T04:16:02.18
IV.EPZF.HHE. ML:2.3 0.001745 1.1 AML other m 2018-02-09T04:16:04.56
IV.EPZF.HHN. ML:2.4 0.0021000000000000003 1.46 AML other m 2018-02-09T04:16:04.73
IV.EPOZ.HHN. ML:1.9 0.000652 0.72 AML other m 2018-02-09T04:16:07.16
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