Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 06-03-2018 and time 20:36:33 (Italy) in region 9 km SE Maletto (CT)

A magnitude ML 1.8 earthquake occured in region: 9 km SE Maletto (CT), on

  • 06-03-2018 19:36:33 (UTC)
  • 06-03-2018 20:36:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7800, 14.9400 at 25 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
Maletto CT 9 3920 3920
Bronte CT 9 19172 23092
Randazzo CT 11 10900 33992
Maniace CT 15 3765 37757
Santa Domenica Vittoria ME 15 980 38737
Adrano CT 16 36122 74859
Biancavilla CT 16 24007 98866
Ragalna CT 17 3924 102790
Moio Alcantara ME 17 717 103507
Milo CT 17 1087 104594
Zafferana Etnea CT 17 9517 114111
Roccella Valdemone ME 18 666 114777
Sant'Alfio CT 18 1582 116359
Santa Maria di Licodia CT 19 7641 124000
Malvagna ME 19 733 124733
Linguaglossa CT 19 5403 130136
Castiglione di Sicilia CT 20 3215 133351
Nicolosi CT 20 7463 140814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Acireale (52622 inhabitants)
33 Km NW of Catania (314555 inhabitants)
71 Km SW of Messina (238439 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
86 Km NW of Siracusa (122291 inhabitants)
97 Km N of Ragusa (73313 inhabitants)
99 Km NE of Vittoria (63339 inhabitants)
100 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 1.8 2018-03-06
19:36:33		 37.7795 14.9397 25 2019-04-24
14:49:33		 Bollettino Sismico Italiano INGV 56765821
Reviewed
Rev100 		ML 2.1 2018-03-06
19:36:33		 37.781 14.9048 29 2018-03-06
19:50:24		 Sala Sismica INGV-Roma 54377651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-06 19:36:33 ± 0.21
Latitude 37.7795 ± 0.0081
Longitude 14.9397 ± 0.0148
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56765821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1172
Semi-minor axis of confidence ellipse (meter) 804
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.82917
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 56765821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-11 16:59:23

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 54377651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-06 19:50:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2018-03-06T19:37:01.59 0.3 undecidable manual S 189 92.0412 100 0.37 83
IV.SSY.HHZ. 2018-03-06T19:36:55.60 0.3 undecidable manual S 170 69.9744 103 0.16 90
IV.AGST.EHN. 2018-03-06T19:36:53.75 0.3 undecidable manual S 156 63.2922 105 0.04 93
IV.MPNC.HHN. 2018-03-06T19:36:52.19 0.6 undecidable manual S 41 54.4011 108 0.75 51
IV.HAGA.HHE. 2018-03-06T19:36:52.23 0.6 undecidable manual S 161 57.9975 106 -0.14 61
IV.HMDC.HHZ. 2018-03-06T19:36:51.27 0.6 undecidable manual P 189 92.0412 100 1.61 31
IV.HLNI.HHZ. 2018-03-06T19:36:49.55 0.3 undecidable manual S 187 48.2184 110 -0.32 90
IV.AIO.HHZ. 2018-03-06T19:36:47.14 0.3 undecidable manual S 50 33.3444 120 0.87 74
IV.NOV.HHZ. 2018-03-06T19:36:46.25 0.6 undecidable manual S 32 32.5452 121 0.17 63
IV.SSY.HHZ. 2018-03-06T19:36:46.23 0.3 undecidable manual P 170 69.9744 103 -0.1 90
IV.MUCR.HHZ. 2018-03-06T19:36:45.41 0.3 undecidable manual S 349 29.748 123 -0.06 98
IV.HAGA.HHE. 2018-03-06T19:36:44.29 0.3 undecidable manual P 161 57.9975 106 -0.26 89
IV.ESML.HHZ. 2018-03-06T19:36:44.16 0.6 undecidable manual S 196 18.6702 138 0.95 51
IV.AGST.EHN. 2018-03-06T19:36:44.75 0.3 undecidable manual P 156 63.2922 105 -0.58 82
IV.CAGR.HHE. 2018-03-06T19:36:43.68 0.3 undecidable manual P 246 42.3243 113 1.4 59
IV.MPNC.HHN. 2018-03-06T19:36:43.60 0.3 undecidable manual P 41 54.4011 108 -0.42 88
IV.HLNI.HHZ. 2018-03-06T19:36:42.56 0.3 undecidable manual P 187 48.2184 110 -0.55 84
IV.EPZF.HHZ. 2018-03-06T19:36:41.60 0.3 undecidable manual S 304 8.7801 158 -0.2 99
IV.NOV.HHZ. 2018-03-06T19:36:41.06 0.3 undecidable manual P 32 32.5452 121 0.14 96
IV.GALF.HHZ. 2018-03-06T19:36:41.20 0.3 undecidable manual P 257 33.6441 120 0.13 97
IV.AIO.HHZ. 2018-03-06T19:36:40.89 0.3 undecidable manual P 50 33.3444 120 -0.14 97
IV.MUCR.HHZ. 2018-03-06T19:36:40.21 0.3 undecidable manual P 349 29.748 123 -0.36 92
IV.EPOZ.HHZ. 2018-03-06T19:36:39.92 0.3 undecidable manual P 119 24.8529 129 -0.04 100
IV.ESML.HHZ. 2018-03-06T19:36:39.40 0.3 undecidable manual P 196 18.6702 138 0.13 99
IV.EPZF.HHZ. 2018-03-06T19:36:37.90 0.3 undecidable manual P 304 8.7801 158 -0.56 90
IV.EMSG.HHZ. 2018-03-06T19:36:37.64 0.3 undecidable manual P 11 4.6953 168 -0.63 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.1 0.0008608002000000001 0.32 AML other m 2018-03-06T19:36:42.87
IV.EMSG.HHE. ML:2.1 0.00078271765 0.2304 AML other m 2018-03-06T19:36:44.77
IV.EPOZ.HHE. ML:2.0 0.00042256170000000003 1.088 AML other m 2018-03-06T19:36:51.80
IV.EPOZ.HHN. ML:1.9 0.00031754635000000005 0.896 AML other m 2018-03-06T19:36:40.18
IV.MUCR.HHN. ML:1.6 0.00013465955 0.32 AML other m 2018-03-06T19:36:46.64
IV.MUCR.HHE. ML:1.7 0.00019117144999999998 0.384 AML other m 2018-03-06T19:36:46.72
IV.GALF.HHN. ML:1.6 0.00014886205 0.4096 AML other m 2018-03-06T19:36:48.79
IV.GALF.HHE. ML:1.8 0.00018973825 0.4992 AML other m 2018-03-06T19:36:51.21
IV.HLNI.HHE. ML:1.4 0.00006033855 0.2688 AML other m 2018-03-06T19:36:50.29
IV.HLNI.HHN. ML:1.7 0.000108083789 0.2304 AML other m 2018-03-06T19:36:50.73
IV.SSY.HHN. ML:2.2 0.000224628325 0.1664 AML other m 2018-03-06T19:36:59.15
IV.SSY.HHE. ML:1.8 0.00010474085 1.2672 AML other m 2018-03-06T19:36:52.52
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