INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.7 on date 12-07-2018 and time 01:04:21 (Italy) in region 5 km NE Adrano (CT)

A magnitude ML 1.7 earthquake occured in region: 5 km NE Adrano (CT), on

  • 11-07-2018 23:04:21 (UTC)
  • 12-07-2018 01:04:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.69, 14.88 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Adrano CT 5 36122 36122
Biancavilla CT 5 24007 60129
Santa Maria di Licodia CT 8 7641 67770
Ragalna CT 8 3924 71694
Bronte CT 12 19172 90866
Paternò CT 12 48228 139094
Belpasso CT 14 28108 167202
Centuripe EN 15 5470 172672
Nicolosi CT 15 7463 180135
Maletto CT 16 3920 184055
Camporotondo Etneo CT 17 5023 189078
Pedara CT 18 14102 203180
San Pietro Clarenza CT 18 7743 210923
Trecastagni CT 19 10910 221833
Zafferana Etnea CT 19 9517 231350
Mascalucia CT 20 31958 263308

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
82 Km SW of Messina (238439 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
86 Km N of Ragusa (73313 inhabitants)
88 Km NE of Vittoria (63339 inhabitants)
89 Km NE of Gela (75827 inhabitants)
93 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2018-07-11
23:04:21
37.69 14.88 10 2018-07-11
23:11:09
Sala Sismica INGV-Roma 58702991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-11 23:04:21 ± 0.22
Latitude 37.69 ± 0.01
Longitude 14.88 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 58702991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1384
Semi-minor axis of confidence ellipse (meter) 797
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3948
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 58702991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-11 23:11:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.CLTB.HHZ. 2018-07-11T23:04:46.45 3.0 negative manual P -0.33 0
IV.RAFF.HHZ. 2018-07-11T23:04:35.82 3.0 positive manual P 0.58 0
IV.MUCR.HHZ. 2018-07-11T23:04:34.80 0.6 undecidable manual S 359 0.3543 50 -0.11 47
IV.MNO.SHZ. 2018-07-11T23:04:33.35 0.3 undecidable manual S 328 0.2842 50 0.52 71
IV.EPOZ.HHZ. 2018-07-11T23:04:31.66 0.3 undecidable manual S 94 0.2419 50 0.08 71
IV.AIO.HHZ. 2018-07-11T23:04:30.29 0.1 undecidable manual P 44 0.3948 50 0.28 93
IV.MUCR.HHZ. 2018-07-11T23:04:29.12 0.1 undecidable manual P 359 0.3543 50 -0.2 92
IV.MNO.SHZ. 2018-07-11T23:04:28.62 0.1 undecidable manual P 328 0.2842 50 0.5 93
IV.EPZF.HHZ. 2018-07-11T23:04:28.36 0.6 undecidable manual S 351 0.1367 123 0.41 44
IV.EPOZ.HHZ. 2018-07-11T23:04:27.69 0.1 undecidable manual P 94 0.2419 50 0.29 93
IV.ESLN.HHZ. 2018-07-11T23:04:26.46 0.6 undecidable manual S 86 0.0719 141 0.38 43
IV.ESML.HHZ. 2018-07-11T23:04:26.38 0.6 undecidable manual S 183 0.071 141 0.34 48
IV.ESML.HHZ. 2018-07-11T23:04:24.08 0.1 undecidable manual P 183 0.071 141 -0.12 100
IV.EPZF.HHZ. 2018-07-11T23:04:24.61 0.1 undecidable manual P 351 0.1367 123 -0.69 89
IV.ESLN.HHZ. 2018-07-11T23:04:23.53 0.1 undecidable manual P 86 0.0719 141 -0.69 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:2.2 0.00218 0.74 AML other m 2018-07-11T23:04:27.74
IV.EPZF.HHN. ML:2 0.0008765 0.34 AML other m 2018-07-11T23:04:29.82
IV.EPZF.HHE. ML:2 0.0009885 0.94 AML other m 2018-07-11T23:04:30.50
IV.ESLN.HHE. ML:2.1 0.00175 0.28 AML other m 2018-07-11T23:04:30.38
IV.ESML.HHE. ML:2 0.001335 0.64 AML other m 2018-07-11T23:04:30.37
IV.ESML.HHN. ML:1.8 0.000964 0.76 AML other m 2018-07-11T23:04:31.72
IV.MNO.SHE. ML:0 0.000161 1.48 AML other m 2018-07-11T23:04:36.85
IV.GALF.HHE. ML:0 0.0002215 0.96 AML other m 2018-07-11T23:04:36.96
IV.MUCR.HHN. ML:1.6 0.0001347 0.42 AML other m 2018-07-11T23:04:37.63
IV.MNO.SHN. ML:0 0.000266 0.56 AML other m 2018-07-11T23:04:38.53
IV.AIO.HHE. ML:1.4 8.635E-5 1.66 AML other m 2018-07-11T23:04:39.87
IV.GALF.HHN. ML:0 0.0002835 0.42 AML other m 2018-07-11T23:04:41.15
IV.MUCR.HHE. ML:1.6 0.000154 0.6 AML other m 2018-07-11T23:04:42.19
IV.AIO.HHN. ML:1.5 0.0001001 0.78 AML other m 2018-07-11T23:04:43.05
MN.CLTB.HHE. ML:2.2 7.84E-5 0.6 AML other m 2018-07-11T23:04:47.57
IV.RAFF.HHN. ML:1.5 4.85E-5 0.68 AML other m 2018-07-11T23:04:49.34
IV.RAFF.HHE. ML:1.4 3.885E-5 1.04 AML other m 2018-07-11T23:04:55.80
MN.CLTB.HHN. ML:2.4 0.0001315 1.24 AML other m 2018-07-11T23:05:20.33
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