Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 07-08-2017 and time 11:05:08 (Italy) in region Costa Catanese (Catania)

A magnitude ML 2.0 earthquake occured in region: Costa Catanese (Catania), on

  • 07-08-2017 09:05:08 (UTC)
  • 07-08-2017 11:05:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5710, 15.1710 at 7 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
Aci Castello CT 3 18723 18723
Valverde CT 4 7840 26563
Aci Catena CT 4 29851 56414
Acireale CT 5 52622 109036
San Gregorio di Catania CT 6 11966 121002
Aci Sant'Antonio CT 6 17984 138986
Aci Bonaccorsi CT 6 3524 142510
San Giovanni la Punta CT 7 23060 165570
Viagrande CT 8 8563 174133
Sant'Agata li Battiati CT 8 9479 183612
Tremestieri Etneo CT 9 20589 204201
Trecastagni CT 10 10910 215111
Gravina di Catania CT 10 25838 240949
Mascalucia CT 10 31958 272907
Catania CT 11 314555 587462
Pedara CT 11 14102 601564
San Pietro Clarenza CT 13 7743 609307
Santa Venerina CT 13 8592 617899
Nicolosi CT 14 7463 625362
Camporotondo Etneo CT 15 5023 630385
Zafferana Etnea CT 15 9517 639902
Misterbianco CT 16 49410 689312
Belpasso CT 17 28108 717420
Milo CT 18 1087 718507
Giarre CT 18 27659 746166
Riposto CT 18 14838 761004
Motta Sant'Anastasia CT 19 12116 773120
Sant'Alfio CT 20 1582 774702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km S of Acireale (52622 inhabitants)
11 Km NE of Catania (314555 inhabitants)
58 Km N of Siracusa (122291 inhabitants)
73 Km SW of Reggio di Calabria (183035 inhabitants)
77 Km SW of Messina (238439 inhabitants)
82 Km NE of Ragusa (73313 inhabitants)
87 Km NE of Modica (54633 inhabitants)
89 Km NE of Vittoria (63339 inhabitants)
98 Km E of Caltanissetta (63360 inhabitants)
99 Km NE of Gela (75827 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 2017-08-07
09:05:08		 37.5712 15.1713 7 2018-07-06
15:40:36		 Bollettino Sismico Italiano INGV 53423581
Reviewed
Rev100 		ML 1.9 2017-08-07
09:05:09		 37.5593 15.1382 6 2017-08-07
09:13:12		 Sala Sismica INGV-Roma 48769111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-07 09:05:08 ± 0.17
Latitude 37.5712 ± 0.0063
Longitude 15.1713 ± 0.0148
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 53423581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1277
Semi-minor axis of confidence ellipse (meter) 346
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 1.32920
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 53423581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-01-25 09:07:46

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 48769111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-07 09:13:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2017-08-07T09:05:35.32 0.3 undecidable manual S 242 81.0522 50 1.44 40
IV.PLAC.HHZ. 2017-08-07T09:05:33.14 0.6 undecidable manual P 48 147.5412 50 -0.36 37
IV.HMDC.HHZ. 2017-08-07T09:05:32.87 0.6 undecidable manual S 207 76.0683 50 0.34 43
IV.MEU.SHZ. 2017-08-07T09:05:27.99 0.3 undecidable manual S 211 59.2962 50 -0.05 71
IV.RAFF.HHZ. 2017-08-07T09:05:23.05 0.1 undecidable manual P 242 81.0522 50 -0.22 87
IV.HMDC.HHZ. 2017-08-07T09:05:22.34 0.1 undecidable manual P 207 76.0683 50 -0.16 90
IV.MSFR.HHZ. 2017-08-07T09:05:22.34 0.3 undecidable manual P 315 72.2721 50 0.44 64
IV.AGST.EHZ. 2017-08-07T09:05:21.93 0.6 undecidable manual S 172 35.2425 101 0.7 41
IV.HLNI.HHZ. 2017-08-07T09:05:21.20 0.6 undecidable manual S 227 36.1416 100 -0.33 46
IV.GALF.HHZ. 2017-08-07T09:05:19.61 0.3 undecidable manual P 286 55.3002 50 0.31 68
IV.MUCR.HHE. 2017-08-07T09:05:19.40 0.3 undecidable manual P 334 58.497 50 -0.38 66
IV.MEU.SHZ. 2017-08-07T09:05:19.52 0.1 undecidable manual P 211 59.2962 50 -0.38 88
IV.AIO.HHE. 2017-08-07T09:05:17.19 0.3 undecidable manual P 7 44.7219 50 -0.47 67
IV.EPZF.HHZ. 2017-08-07T09:05:17.38 0.3 undecidable manual P 316 39.3273 100 0.6 64
IV.ESLN.HHZ. 2017-08-07T09:05:16.44 0.6 undecidable manual S 308 21.9669 107 -0.31 48
IV.HLNI.HHZ. 2017-08-07T09:05:15.70 0.1 undecidable manual P 227 36.1416 100 -0.44 91
IV.EMSG.HHN. 2017-08-07T09:05:15.35 0.3 undecidable manual P 325 33.8439 101 -0.34 70
IV.AGST.EHZ. 2017-08-07T09:05:15.93 0.1 undecidable manual P 172 35.2425 101 -0.04 99
IV.ESLN.HHZ. 2017-08-07T09:05:13.29 0.1 undecidable manual P 308 21.9669 107 -0.1 100
IV.EPOZ.HHZ. 2017-08-07T09:05:12.11 0.1 undecidable manual P 8 11.2776 120 0.7 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:2.3 0.0027600000000000003 1.4 AML other m 2017-08-07T09:05:16.09
IV.EPOZ.HHN. ML:2.2 0.002355 0.44 AML other m 2017-08-07T09:05:18.57
IV.AGST.EHE. ML:1.8 0.0002595 0.48 AML other m 2017-08-07T09:05:22.34
IV.HLNI.HHE. ML:1.9 0.00033150000000000003 0.16 AML other m 2017-08-07T09:05:22.77
IV.HLNI.HHN. ML:1.9 0.000311 1.08 AML other m 2017-08-07T09:05:23.63
IV.AGST.EHN. ML:1.9 0.000308 0.94 AML other m 2017-08-07T09:05:23.16
IV.MEU.SHE. ML:0.0 0.000262 0.56 AML other m 2017-08-07T09:05:31.67
IV.MEU.SHN. ML:0.0 0.00032299999999999994 0.88 AML other m 2017-08-07T09:05:32.17
IV.HMDC.HHE. ML:2.2 0.00022799999999999999 0.18 AML other m 2017-08-07T09:05:34.37
IV.RAFF.HHN. ML:1.8 0.00008865 0.86 AML other m 2017-08-07T09:05:35.93
IV.RAFF.HHE. ML:1.7 0.00006305 0.9 AML other m 2017-08-07T09:05:37.31
IV.HMDC.HHN. ML:2.2 0.0002215 1.16 AML other m 2017-08-07T09:05:38.20
IV.PLLN.EHE. ML:1.8 0.000053150000000000004 0.48 AML other m 2017-08-07T09:05:43.77
IV.PLLN.EHN. ML:1.8 0.00006459999999999998 1.3 AML other m 2017-08-07T09:05:43.93
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