INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 08-07-2018 and time 20:18:35 (Italy) in region 3 km E Maletto (CT)

A magnitude ML 1.6 earthquake occured in region: 3 km E Maletto (CT), on

  • 08-07-2018 18:18:35 (UTC)
  • 08-07-2018 20:18:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.83, 14.9 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
Maletto CT 3 3920 3920
Randazzo CT 7 10900 14820
Bronte CT 8 19172 33992
Maniace CT 9 3765 37757
Santa Domenica Vittoria ME 11 980 38737
Roccella Valdemone ME 15 666 39403
Moio Alcantara ME 15 717 40120
Malvagna ME 17 733 40853
Cesarò ME 17 2439 43292
Floresta ME 18 485 43777
San Teodoro ME 18 1403 45180
Adrano CT 19 36122 81302

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Acireale (52622 inhabitants)
39 Km NW of Catania (314555 inhabitants)
70 Km SW of Messina (238439 inhabitants)
72 Km W of Reggio di Calabria (183035 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
92 Km NW of Siracusa (122291 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 1.6 2018-07-08
18:18:35
37.83 14.9 10 2018-07-08
18:26:03
Sala Sismica INGV-Roma 58600881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-08 18:18:35 ± 0.08
Latitude 37.83 ± 0.01
Longitude 14.90 ± 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 58600881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 759
Semi-minor axis of confidence ellipse (meter) 621
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 58600881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-08 18:26:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2018-07-08T18:18:44.78 0.6 undecidable manual S 354 0.2158 50 0.36 47
IV.HLNI.HHZ. 2018-07-08T18:18:44.75 3.0 negative manual P -0.31 0
IV.MNO.SHZ. 2018-07-08T18:18:43.89 1.0 undecidable manual S 302 0.1952 116 0.15 25
IV.ESLN.HHZ. 2018-07-08T18:18:42.43 1.0 undecidable manual S 158 0.1457 123 0.36 24
IV.GALF.HHZ. 2018-07-08T18:18:41.89 0.3 positive manual P 246 0.2914 50 -0.01 75
IV.NOV.HHZ. 2018-07-08T18:18:41.54 0.6 negative manual P 42 0.2707 50 0 50
IV.AIO.HHZ. 2018-07-08T18:18:41.97 0.3 positive manual P 61 0.2959 50 0 75
IV.MUCR.HHZ. 2018-07-08T18:18:40.40 0.6 positive manual P 354 0.2158 50 -0.21 49
IV.ESML.HHZ. 2018-07-08T18:18:40.69 0.6 negative manual P 185 0.2104 50 0.17 49
IV.MNO.SHZ. 2018-07-08T18:18:40.26 0.6 undecidable manual P 302 0.1952 116 0.04 51
IV.ESLN.HHZ. 2018-07-08T18:18:39.30 0.6 positive manual P 158 0.1457 123 0.04 51
IV.EPZF.HHZ. 2018-07-08T18:18:39.71 0.6 undecidable manual S 264 0.0378 158 0.41 48
IV.EMSG.HHZ. 2018-07-08T18:18:39.62 0.3 undecidable manual S 101 0.036 159 0.33 74
IV.EMCN.HNZ. 2018-07-08T18:18:38.51 0.3 undecidable manual P 110 0.1079 131 -0.09 77
IV.EMSG.HHZ. 2018-07-08T18:18:37.38 0.1 negative manual P 101 0.036 159 -0.26 100
IV.EPZF.HHZ. 2018-07-08T18:18:37.24 0.1 negative manual P 264 0.0378 158 -0.41 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:0 0.0036871155 0.2816 AML other m 2018-07-08T18:18:40.12
IV.EPZF.HHN. ML:0 0.004719704 0.1536 AML other m 2018-07-08T18:18:40.24
IV.EMSG.HHE. ML:2.2 0.002685433 0.2048 AML other m 2018-07-08T18:18:39.67
IV.EMSG.HHN. ML:2.2 0.0028180125 0.192 AML other m 2018-07-08T18:18:39.71
IV.ESLN.HHE. ML:1.8 0.0005561215 1.536 AML other m 2018-07-08T18:18:43.08
IV.ESLN.HHN. ML:1.8 0.0005023972 0.8448 AML other m 2018-07-08T18:18:39.44
IV.MUCR.HHN. ML:1.5 0.00019097075 0.6272 AML other m 2018-07-08T18:18:47.11
IV.MUCR.HHE. ML:1.6 0.0002569595 0.4864 AML other m 2018-07-08T18:18:45.47
IV.ESML.HHE. ML:1.7 0.0002850628 0.8064 AML other m 2018-07-08T18:18:50.55
IV.ESML.HHN. ML:1.6 0.0002551453 0.2688 AML other m 2018-07-08T18:18:51.14
IV.NOV.HHE. ML:1.6 0.00018079295 0.384 AML other m 2018-07-08T18:18:49.66
IV.NOV.HHN. ML:1.6 0.00019152565 0.3456 AML other m 2018-07-08T18:18:48.38
IV.GALF.HHE. ML:1.7 0.0002209305 0.4992 AML other m 2018-07-08T18:18:52.43
IV.GALF.HNE. ML:1.5 0.00013813841 1.152 AML other m 2018-07-08T18:18:47.09
IV.GALF.HNN. ML:1.6 0.0001722414 0.6144 AML other m 2018-07-08T18:18:54.22
IV.GALF.HHN. ML:1.5 0.0001434231 0.32 AML other m 2018-07-08T18:18:51.24
IV.AIO.HHE. ML:1.4 0.00010772015 0.1792 AML other m 2018-07-08T18:18:49.96
IV.AIO.HHN. ML:1.5 0.00014427505 0.2816 AML other m 2018-07-08T18:18:49.75
IV.HLNI.HHN. ML:1.2 3.8011495E-5 0.2816 AML other m 2018-07-08T18:18:53.86
IV.HLNI.HHE. ML:1 2.7343355E-5 0.4096 AML other m 2018-07-08T18:18:53.27
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