ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.7 on date 24-03-2019 and time 16:20:38 (Italy) in region 6 km W Milo (CT)

A magnitude ML 1.7 earthquake occured in region: 6 km W Milo (CT), on

  • 24-03-2019 15:20:38 (UTC)
  • 24-03-2019 16:20:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 15.05 at 2 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 6 1087 1087
Zafferana Etnea CT 7 9517 10604
Sant'Alfio CT 9 1582 12186
Santa Venerina CT 10 8592 20778
Giarre CT 12 27659 48437
Pedara CT 13 14102 62539
Mascali CT 13 14282 76821
Nicolosi CT 14 7463 84284
Trecastagni CT 14 10910 95194
Riposto CT 14 14838 110032
Piedimonte Etneo CT 14 3963 113995
Viagrande CT 15 8563 122558
Linguaglossa CT 15 5403 127961
Ragalna CT 15 3924 131885
Fiumefreddo di Sicilia CT 16 9623 141508
Aci Sant'Antonio CT 16 17984 159492
Aci Bonaccorsi CT 16 3524 163016
Aci Catena CT 17 29851 192867
Belpasso CT 17 28108 220975
Acireale CT 17 52622 273597
Castiglione di Sicilia CT 18 3215 276812
Tremestieri Etneo CT 18 20589 297401
Mascalucia CT 18 31958 329359
Randazzo CT 18 10900 340259
San Giovanni la Punta CT 18 23060 363319
San Pietro Clarenza CT 18 7743 371062
Moio Alcantara ME 18 717 371779
Biancavilla CT 19 24007 395786
Valverde CT 19 7840 403626
Calatabiano CT 19 5308 408934
Maletto CT 19 3920 412854
Camporotondo Etneo CT 19 5023 417877
Santa Maria di Licodia CT 19 7641 425518
Gravina di Catania CT 20 25838 451356
Bronte CT 20 19172 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
17 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)
78 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 1.7 2019-03-24
15:20:38
37.74 15.05 2 2019-03-24
15:27:07
Sala Sismica INGV-Roma 66874141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-24 15:20:38 ± 0.45
Latitude 37.74 ± 0.01
Longitude 15.05 ± 0.03
Depth (km) 2 ± 7 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66874141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2456
Semi-minor axis of confidence ellipse (meter) 941
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 2460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.33545
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 66874141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-24 15:27:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHE. 2019-03-24T15:20:46.30 0.1 undecidable manual P 336 0.3354 93 -0.13 93
IV.EMSG.HHZ. 2019-03-24T15:20:44.35 0.6 undecidable manual S 318 0.1142 100 0.95 37
IV.ECTS.EHE. 2019-03-24T15:20:42.93 0.1 undecidable manual P 22 0.1574 97 0.45 90
IV.ESLN.HHZ. 2019-03-24T15:20:42.00 0.6 undecidable manual S 233 0.071 105 0.21 48
IV.EMSG.HHZ. 2019-03-24T15:20:41.09 0.1 negative manual P 318 0.1142 100 -0.43 91
IV.EMCN.HNZ. 2019-03-24T15:20:41.12 0.6 undecidable manual S 350 0.0558 109 -0.11 49
IV.ESLN.HHZ. 2019-03-24T15:20:40.57 0.1 negative manual P 233 0.071 105 -0.02 100
IV.EMCN.HNZ. 2019-03-24T15:20:39.99 0.1 positive manual P 350 0.0558 109 -0.28 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:1.9 0.0008355 0.6 AML other m 2019-03-24T15:20:46.41
IV.ESLN.HHN. ML:1.3 0.000297 0.4 AML other m 2019-03-24T15:20:42.27
IV.ESLN.HHE. ML:1.4 0.000364 0.36 AML other m 2019-03-24T15:20:42.25
IV.EMCN.HNN. ML:0 0.003005 0.1 AML other m 2019-03-24T15:20:42.52
IV.EMSG.HHE. ML:1.7 0.0006855 0.74 AML other m 2019-03-24T15:20:46.01
IV.EMCN.HNE. ML:0 0.0046108025 0.1152 AML other m 2019-03-24T15:20:41.18
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