ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.1 on date 15-03-2019 and time 23:45:57 (UTC) in region 7 km W Milo (CT)

A magnitude ML 1.1 earthquake occured in region: 7 km W Milo (CT), on

  • 15-03-2019 23:45:57 (UTC)
  • 16-03-2019 00:45:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 15.04 at 9 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
Milo CT 7 1087 1087
Zafferana Etnea CT 7 9517 10604
Sant'Alfio CT 9 1582 12186
Santa Venerina CT 10 8592 20778
Giarre CT 13 27659 48437
Pedara CT 13 14102 62539
Mascali CT 14 14282 76821
Nicolosi CT 14 7463 84284
Trecastagni CT 14 10910 95194
Riposto CT 14 14838 110032
Piedimonte Etneo CT 14 3963 113995
Linguaglossa CT 15 5403 119398
Viagrande CT 15 8563 127961
Ragalna CT 15 3924 131885
Fiumefreddo di Sicilia CT 16 9623 141508
Aci Sant'Antonio CT 16 17984 159492
Aci Bonaccorsi CT 17 3524 163016
Belpasso CT 17 28108 191124
Aci Catena CT 17 29851 220975
Castiglione di Sicilia CT 18 3215 224190
Acireale CT 18 52622 276812
Randazzo CT 18 10900 287712
Moio Alcantara ME 18 717 288429
Tremestieri Etneo CT 18 20589 309018
Mascalucia CT 18 31958 340976
San Pietro Clarenza CT 18 7743 348719
San Giovanni la Punta CT 18 23060 371779
Biancavilla CT 19 24007 395786
Maletto CT 19 3920 399706
Calatabiano CT 19 5308 405014
Valverde CT 19 7840 412854
Santa Maria di Licodia CT 19 7641 420495
Camporotondo Etneo CT 19 5023 425518
Bronte CT 19 19172 444690
Gravina di Catania CT 20 25838 470528
San Gregorio di Catania CT 20 11966 482494
Sant'Agata li Battiati CT 20 9479 491973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
67 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km SW of Messina (238439 inhabitants)
79 Km N of Siracusa (122291 inhabitants)
91 Km E of Caltanissetta (63360 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 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 1.1 2019-03-15
23:45:57
37.74 15.04 9 2019-03-15
23:56:20
Sala Sismica INGV-Roma 66573291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-15 23:45:57 ± 0.2
Latitude 37.74 ± 0.01
Longitude 15.04 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66573291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1129
Semi-minor axis of confidence ellipse (meter) 565
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 66573291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-15 23:56:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AIO.HHZ. 2019-03-15T23:46:09.08 0.6 undecidable manual S 33 0.2779 106 0.22 48
IV.MUCR.HHE. 2019-03-15T23:46:05.01 0.3 undecidable manual P 337 0.3327 50 -0.08 73
IV.ECTS.EHZ. 2019-03-15T23:46:04.24 1.0 undecidable manual S 23 0.1574 117 -0.28 24
IV.AIO.HHZ. 2019-03-15T23:46:04.35 0.3 positive manual P 33 0.2779 106 0.2 72
IV.NOV.HHE. 2019-03-15T23:46:04.39 1.0 undecidable manual P 14 0.2995 50 -0.13 24
IV.EMSG.HHZ. 2019-03-15T23:46:03.92 0.6 undecidable manual S 319 0.1106 126 0.93 39
IV.ECTS.EHZ. 2019-03-15T23:46:01.13 0.6 negative manual P 23 0.1574 117 -0.51 46
IV.EPOZ.HHE. 2019-03-15T23:46:01.34 0.1 undecidable manual P 120 0.1331 121 0.17 100
IV.ESLN.HHZ. 2019-03-15T23:46:01.56 0.6 undecidable manual S 231 0.0692 139 -0.26 50
IV.ENIC.HHE. 2019-03-15T23:46:01.20 0.6 undecidable manual P 189 0.107 127 0.5 47
IV.EMSG.HHZ. 2019-03-15T23:46:00.85 0.3 positive manual P 319 0.1106 126 0.09 77
IV.ESLN.HHZ. 2019-03-15T23:45:59.89 0.3 undecidable manual P 231 0.0692 139 -0.19 76
IV.EMCN.HNZ. 2019-03-15T23:45:59.24 0.3 positive manual P 353 0.054 146 -0.63 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMCN.HNE. ML:1.9 0.001455925 0.2304 AML other m 2019-03-15T23:46:01.69
IV.EMCN.HNN. ML:2 0.001645352 0.128 AML other m 2019-03-15T23:46:02.17
IV.ESLN.HHE. ML:1.4 0.00036573845 0.32 AML other m 2019-03-15T23:46:01.66
IV.ESLN.HHN. ML:1.1 0.00018754519 0.2432 AML other m 2019-03-15T23:46:01.66
IV.EMSG.HHE. ML:1.5 0.0003541527 0.32 AML other m 2019-03-15T23:46:11.28
IV.EMSG.HHN. ML:1.4 0.00029595915 0.2048 AML other m 2019-03-15T23:46:08.12
IV.ECTS.EHE. ML:0.9 7.4922365E-5 0.5248 AML other m 2019-03-15T23:46:08.57
IV.ECTS.EHN. ML:1 8.0370995E-5 0.32 AML other m 2019-03-15T23:46:06.27
IV.AIO.HHE. ML:0.8 3.169963E-5 0.4096 AML other m 2019-03-15T23:46:09.43
IV.AIO.HHN. ML:0.8 3.046472E-5 0.32 AML other m 2019-03-15T23:46:14.91
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