Earthquake with magnitude of ML 1.2 on date 01-09-2019 and time 04:57:21 (Italy) in region 4 km SE Bronte (CT)

A magnitude ML 1.2 earthquake occured in region: 4 km SE Bronte (CT), on

  • 01-09-2019 02:57:21 (UTC)
  • 01-09-2019 04:57:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.77, 14.87 at 11 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 4 19172 19172
Maletto CT 7 3920 23092
Maniace CT 12 3765 26857
Adrano CT 12 36122 62979
Biancavilla CT 14 24007 86986
Randazzo CT 14 10900 97886
CesarĂ² ME 16 2439 100325
Ragalna CT 16 3924 104249
Santa Maria di Licodia CT 17 7641 111890
San Teodoro ME 18 1403 113293
Santa Domenica Vittoria ME 18 980 114273
Centuripe EN 20 5470 119743

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Acireale (52622 inhabitants)
35 Km NW of Catania (314555 inhabitants)
77 Km SW of Messina (238439 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
87 Km NW of Siracusa (122291 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
95 Km NE of Gela (75827 inhabitants)
96 Km N 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 1.2 2019-09-01
02:57:21
37.77 14.87 11 2019-09-01
03:02:09
Sala Sismica INGV-Roma 71995981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-01 02:57:21 ± 0.32
Latitude 37.77 ± 0.02
Longitude 14.87 ± 0.03
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71995981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2827
Semi-minor axis of confidence ellipse (meter) 1252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 134
Circular confidence region, given by single value of horizontal uncertainty (meter) 2830
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
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) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 71995981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-01 03:02:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2019-09-01T02:57:32.54 0.1 undecidable manual S 0 0.2743 50 0 98
IV.GALF.HHZ. 2019-09-01T02:57:32.24 0.1 undecidable manual S 257 0.2482 50 0.48 89
IV.MUCR.HHZ. 2019-09-01T02:57:28.01 0.1 undecidable manual P 0 0.2743 50 -0.05 97
IV.GALF.HHZ. 2019-09-01T02:57:27.27 0.1 undecidable manual P 257 0.2482 50 -0.34 92
IV.EMSG.HHZ. 2019-09-01T02:57:27.37 0.1 undecidable manual S 50 0.0809 141 0.51 91
IV.EPZF.HHZ. 2019-09-01T02:57:26.41 0.1 undecidable manual S 348 0.0567 150 0.09 100
IV.EMSG.HHZ. 2019-09-01T02:57:24.57 0.1 positive manual P 50 0.0809 141 -0.2 97
IV.EPZF.HHZ. 2019-09-01T02:57:24.01 0.1 positive manual P 348 0.0567 150 -0.46 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:1.2 0.0002205 1.28 AML other m 2019-09-01T02:57:27.25
IV.EPZF.HHN. ML:1.2 0.0002405 0.82 AML other m 2019-09-01T02:57:30.35
IV.MUCR.HHE. ML:1.1 5.605E-5 0.56 AML other m 2019-09-01T02:57:33.37
IV.GALF.HHN. ML:1.3 0.0001055 0.62 AML other m 2019-09-01T02:57:33.09
IV.GALF.HHE. ML:1.3 9.49E-5 0.9 AML other m 2019-09-01T02:57:33.85
IV.MUCR.HHN. ML:0.9 3.86E-5 1 AML other m 2019-09-01T02:57:34.73
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