ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.9 on date 13-01-2019 and time 23:11:43 (Italy) in region 6 km SE Bronte (CT)

A magnitude ML 1.9 earthquake occured in region: 6 km SE Bronte (CT), on

  • 13-01-2019 22:11:43 (UTC)
  • 13-01-2019 23:11:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 14.87 at 8 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
Bronte CT 6 19172 19172
Adrano CT 9 36122 55294
Maletto CT 10 3920 59214
Biancavilla CT 11 24007 83221
Ragalna CT 14 3924 87145
Santa Maria di Licodia CT 14 7641 94786
Maniace CT 15 3765 98551
Randazzo CT 17 10900 109451
Centuripe EN 17 5470 114921
Cesarò ME 18 2439 117360
Paternò CT 18 48228 165588
San Teodoro ME 19 1403 166991
Belpasso CT 19 28108 195099
Nicolosi CT 20 7463 202562

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Acireale (52622 inhabitants)
33 Km NW of Catania (314555 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
79 Km SW of Messina (238439 inhabitants)
80 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km NW of Siracusa (122291 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
93 Km NE of Gela (75827 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
98 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 1.9 2019-01-13
22:11:43
37.74 14.87 8 2019-01-13
22:36:48
Sala Sismica INGV-Roma 64666221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-13 22:11:43 ± 0.09
Latitude 37.74 ± 0.00
Longitude 14.87 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64666221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 637
Semi-minor axis of confidence ellipse (meter) 437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.60434
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 64666221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-13 22:36:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHE. 2019-01-13T22:11:55.87 0.6 undecidable manual S 1 0.3031 104 0.79 39
IV.SSY.HHZ. 2019-01-13T22:11:55.50 0.1 undecidable manual P 164 0.6043 50 0.34 85
IV.HLNI.HHZ. 2019-01-13T22:11:51.35 0.1 undecidable manual P 179 0.3912 50 -0.16 92
IV.CAGR.HHZ. 2019-01-13T22:11:51.50 3.0 undecidable manual P 247 0.3184 0
IV.AIO.HHE. 2019-01-13T22:11:51.07 0.1 undecidable manual P 51 0.3705 50 -0.09 93
IV.MUCR.HHE. 2019-01-13T22:11:49.81 0.1 undecidable manual P 1 0.3031 104 -0.18 93
IV.ESML.HHZ. 2019-01-13T22:11:49.10 0.6 undecidable manual S 175 0.1214 121 0.55 44
IV.EPOZ.HHN. 2019-01-13T22:11:49.02 0.1 undecidable manual P 105 0.2635 106 -0.11 95
IV.GALF.HHZ. 2019-01-13T22:11:48.64 0.3 positive manual P 263 0.2392 107 0.03 73
IV.EMSG.HHZ. 2019-01-13T22:11:48.00 0.6 undecidable manual S 39 0.1043 126 0.01 50
IV.ESLN.HHZ. 2019-01-13T22:11:47.97 1.0 undecidable manual S 118 0.0971 128 0.22 24
IV.EPZF.HHZ. 2019-01-13T22:11:47.20 0.6 undecidable manual S 355 0.0845 131 -0.19 48
IV.EMCN.HNN. 2019-01-13T22:11:46.81 0.1 undecidable manual P 69 0.1412 118 0.21 95
IV.ESML.HHZ. 2019-01-13T22:11:45.93 0.3 positive manual P 175 0.1214 121 -0.29 70
IV.EPZF.HHZ. 2019-01-13T22:11:45.49 0.1 undecidable manual P 355 0.0845 131 -0.06 99
IV.ESLN.HHZ. 2019-01-13T22:11:45.53 0.1 negative manual P 118 0.0971 128 -0.23 96
IV.EMSG.HHZ. 2019-01-13T22:11:45.89 0.1 positive manual P 39 0.1043 126 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHN. ML:1.9 0.00092333335 0.512 AML other m 2019-01-13T22:11:53.57
IV.EPZF.HHE. ML:2.1 0.0019918105 0.3584 AML other m 2019-01-13T22:11:50.18
IV.EPZF.HHN. ML:2 0.0014183395 0.2304 AML other m 2019-01-13T22:11:49.60
IV.ESLN.HHN. ML:1.6 0.00109072675 0.2432 AML other m 2019-01-13T22:11:51.80
IV.ESLN.HHE. ML:1.7 0.0011586655 0.3712 AML other m 2019-01-13T22:11:53.11
IV.EMSG.HHN. ML:1.8 0.00125134815 0.2432 AML other m 2019-01-13T22:11:54.74
IV.ESML.HHE. ML:1.9 0.00092234305 0.448 AML other m 2019-01-13T22:11:49.35
IV.EMSG.HHE. ML:1.9 0.0010533758 1.1392 AML other m 2019-01-13T22:11:49.00
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