Earthquake with magnitude of ML 1.7 on date 21-07-2018 and time 10:20:56 (Italy) in region 10 km W Milo (CT)

A magnitude ML 1.7 earthquake occured in region: 10 km W Milo (CT), on

  • 21-07-2018 08:20:56 (UTC)
  • 21-07-2018 10:20:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.75, 15.01 at 0 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
Milo CT 10 1087 1087
Zafferana Etnea CT 10 9517 10604
Sant'Alfio CT 12 1582 12186
Santa Venerina CT 13 8592 20778
Ragalna CT 14 3924 24702
Nicolosi CT 15 7463 32165
Pedara CT 15 14102 46267
Trecastagni CT 16 10910 57177
Maletto CT 16 3920 61097
Giarre CT 16 27659 88756
Randazzo CT 16 10900 99656
Linguaglossa CT 16 5403 105059
Bronte CT 16 19172 124231
Piedimonte Etneo CT 16 3963 128194
Mascali CT 17 14282 142476
Biancavilla CT 17 24007 166483
Viagrande CT 17 8563 175046
Riposto CT 17 14838 189884
Moio Alcantara ME 17 717 190601
Belpasso CT 17 28108 218709
Santa Maria di Licodia CT 18 7641 226350
Adrano CT 18 36122 262472
Castiglione di Sicilia CT 18 3215 265687
Fiumefreddo di Sicilia CT 18 9623 275310
Aci Sant'Antonio CT 19 17984 293294
Aci Bonaccorsi CT 19 3524 296818
Santa Domenica Vittoria ME 19 980 297798
San Pietro Clarenza CT 19 7743 305541
Mascalucia CT 20 31958 337499
Tremestieri Etneo CT 20 20589 358088
Malvagna ME 20 733 358821
Aci Catena CT 20 29851 388672
Camporotondo Etneo CT 20 5023 393695

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 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
Rev 1000 ML 1.7 2018-07-21
08:20:56
37.75 15.01 0 2019-04-24
14:50:48
Bollettino Sismico Italiano INGV 58990381
Rev 100 ML 1.9 2018-07-21
08:20:56
37.74 15.03 0 2018-07-21
08:37:03
Sala Sismica INGV-Roma 58933551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-21 08:20:56 ± 0.13
Latitude 37.75 ± 0.01
Longitude 15.01 ± 0.01
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 58990381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 980
Semi-minor axis of confidence ellipse (meter) 580
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 294
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.48294
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:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 58990381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-18 00:09:24

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 58933551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-21 08:37:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPNC.HHN. 2018-07-21T08:21:07.74 0.6 undecidable manual P 34 0.4829 90 0.07 49
IV.GALF.HHZ. 2018-07-21T08:21:05.36 0.3 undecidable manual P 264 0.3516 90 0.59 66
IV.MNO.SHZ. 2018-07-21T08:21:03.89 0.3 undecidable manual P 307 0.3085 90 0.08 76
IV.NOV.HHE. 2018-07-21T08:21:03.39 0.3 undecidable manual P 20 0.2986 90 -0.18 74
IV.AIO.HHZ. 2018-07-21T08:21:03.48 0.1 negative manual P 38 0.2851 90 0.19 99
IV.MUCR.HHZ. 2018-07-21T08:21:03.82 0.3 undecidable manual P 340 0.3148 90 -0.12 75
IV.EMSG.HHZ. 2018-07-21T08:21:01.28 0.6 undecidable manual S 328 0.0872 91 0.96 40
IV.EPOZ.HHE. 2018-07-21T08:21:01.11 0.6 undecidable manual P 118 0.1601 91 0.6 46
IV.ESML.HHZ. 2018-07-21T08:21:00.85 0.3 undecidable manual P 219 0.1646 91 0.25 75
IV.ESLN.HHZ. 2018-07-21T08:20:59.26 0.3 undecidable manual S 207 0.0603 91 0 81
IV.EPZF.HHZ. 2018-07-21T08:20:59.81 0.1 undecidable manual P 303 0.143 91 -0.31 99
IV.EMCN.HNZ. 2018-07-21T08:20:59.02 0.6 undecidable manual S 23 0.0486 92 0.22 52
IV.EMSG.HHZ. 2018-07-21T08:20:58.56 0.1 positive manual P 328 0.0872 91 -0.33 100
IV.EMCN.HNZ. 2018-07-21T08:20:57.65 0.1 positive manual P 23 0.0486 92 -0.37 100
IV.ESLN.HHZ. 2018-07-21T08:20:57.87 0.1 positive manual P 207 0.0603 91 -0.41 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMCN.HNE. ML:0 0.0042546845 0.0704 AML other m 2018-07-21T08:20:59.12
IV.ESLN.HHN. ML:0 0.00313611 0.1216 AML other m 2018-07-21T08:20:59.52
IV.EMCN.HNN. ML:0 0.003864314 0.0704 AML other m 2018-07-21T08:20:59.90
IV.ESLN.HHE. ML:0 0.003960855 0.1024 AML other m 2018-07-21T08:21:00.00
IV.EMSG.HHN. ML:2.4 0.005280593 0.3008 AML other m 2018-07-21T08:21:02.99
IV.EPZF.HHN. ML:2 0.001285108 0.4608 AML other m 2018-07-21T08:21:07.90
IV.EPZF.HHE. ML:2.1 0.001502638 0.3392 AML other m 2018-07-21T08:21:07.89
IV.ESML.HHN. ML:1.7 0.000486084 0.4992 AML other m 2018-07-21T08:21:10.12
IV.MUCR.HHE. ML:1.6 0.0001750035 0.4544 AML other m 2018-07-21T08:21:13.16
IV.AIO.HHN. ML:1.3 9.408389E-5 0.32 AML other m 2018-07-21T08:21:14.20
IV.MNO.SHN. ML:0 0.00026591675 0.7168 AML other m 2018-07-21T08:21:14.52
IV.AIO.HHE. ML:1.3 9.6366415E-5 0.48 AML other m 2018-07-21T08:21:14.38
IV.MNO.SHE. ML:0 0.00033691635 0.8 AML other m 2018-07-21T08:21:15.99
IV.GALF.HNE. ML:1.6 0.00014110835 0.6144 AML other m 2018-07-21T08:21:17.61
IV.GALF.HNN. ML:1.6 0.00013289645 0.6208 AML other m 2018-07-21T08:21:18.75
IV.GALF.HHE. ML:1.8 0.0002130391 0.6848 AML other m 2018-07-21T08:21:20.67
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download