Earthquake with magnitude of ML 1.4 on date 20-07-2019 and time 09:57:00 (UTC) in region 3 km NE Biancavilla (CT)

A magnitude ML 1.4 earthquake occured in region: 3 km NE Biancavilla (CT), on

  • 20-07-2019 09:57:00 (UTC)
  • 20-07-2019 11:57:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.66, 14.9 at 26 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
Biancavilla CT 4 24007 24007
Ragalna CT 5 3924 27931
Santa Maria di Licodia CT 5 7641 35572
Adrano CT 6 36122 71694
PaternĂ² CT 10 48228 119922
Belpasso CT 10 28108 148030
Nicolosi CT 12 7463 155493
Camporotondo Etneo CT 14 5023 160516
Centuripe EN 15 5470 165986
San Pietro Clarenza CT 15 7743 173729
Pedara CT 15 14102 187831
Bronte CT 15 19172 207003
Trecastagni CT 17 10910 217913
Mascalucia CT 17 31958 249871
Motta Sant'Anastasia CT 18 12116 261987
Tremestieri Etneo CT 18 20589 282576
Zafferana Etnea CT 18 9517 292093
Viagrande CT 18 8563 300656
Gravina di Catania CT 18 25838 326494
Misterbianco CT 18 49410 375904
Maletto CT 19 3920 379824
San Giovanni la Punta CT 20 23060 402884
Sant'Agata li Battiati CT 20 9479 412363
Aci Bonaccorsi CT 20 3524 415887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Catania (314555 inhabitants)
24 Km W of Acireale (52622 inhabitants)
76 Km NW of Siracusa (122291 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km SW of Messina (238439 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
86 Km NE of Vittoria (63339 inhabitants)
88 Km NE of Gela (75827 inhabitants)
90 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 1.4 2019-07-20
09:57:00
37.66 14.9 26 2019-07-20
10:06:30
Sala Sismica INGV-Roma 70735101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-20 09:57:00 ± 0.37
Latitude 37.66 ± 0.01
Longitude 14.90 ± 0.02
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70735101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1607
Semi-minor axis of confidence ellipse (meter) 1057
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 1610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31566
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 70735101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-20 10:06:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2019-07-20T09:57:30.25 3.0 undecidable manual S -0.64 0
IV.HLNI.HHZ. 2019-07-20T09:57:13.29 0.3 undecidable manual S 184 0.3157 121 0.15 70
IV.MNO.SHE. 2019-07-20T09:57:12.65 0.6 undecidable manual S 329 0.313 121 -0.43 44
IV.GALF.HHZ. 2019-07-20T09:57:12.07 0.6 undecidable manual S 280 0.268 126 0.1 48
IV.EPZF.HHZ. 2019-07-20T09:57:10.18 0.3 undecidable manual S 348 0.1646 141 0.46 69
IV.HLNI.HHZ. 2019-07-20T09:57:07.70 0.6 undecidable manual P 184 0.3157 121 0.04 49
IV.ESML.HHZ. 2019-07-20T09:57:07.98 0.6 undecidable manual S 200 0.0477 167 -0.21 51
IV.MNO.SHE. 2019-07-20T09:57:07.28 0.1 undecidable manual P 329 0.313 121 -0.34 89
IV.GALF.HHZ. 2019-07-20T09:57:07.38 0.6 negative manual P 280 0.268 126 0.4 46
IV.EMSG.HHZ. 2019-07-20T09:57:06.12 0.6 negative manual P 14 0.1619 141 0.45 47
IV.EPZF.HHZ. 2019-07-20T09:57:05.71 0.1 undecidable manual P 348 0.1646 141 0.02 100
IV.ESLN.HHZ. 2019-07-20T09:57:04.80 0.1 undecidable manual P 63 0.0665 163 -0.09 100
IV.ESML.HHZ. 2019-07-20T09:57:04.37 0.6 undecidable manual P 200 0.0477 167 -0.43 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHN. ML:1.3 6.33E-5 0.26 AML other m 2019-07-20T09:57:14.17
IV.HLNI.HHE. ML:1.4 7.515E-5 1.4 AML other m 2019-07-20T09:57:14.95
IV.ESML.HHE. ML:1.4 0.000140100085 0.4608 AML other m 2019-07-20T09:57:09.95
IV.ESML.HHN. ML:1.4 0.0001375302 0.2816 AML other m 2019-07-20T09:57:08.61
IV.EPZF.HHE. ML:1.4 0.0001123433 0.6208 AML other m 2019-07-20T09:57:10.04
IV.EPZF.HHN. ML:1.5 0.00016561505 1.1776 AML other m 2019-07-20T09:57:17.71
IV.GALF.HHE. ML:1.5 0.000104428325 0.384 AML other m 2019-07-20T09:57:16.22
IV.GALF.HHN. ML:1.5 0.0001259849 0.6592 AML other m 2019-07-20T09:57:15.64
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