Earthquake with magnitude of ML 2.7 on date 06-12-2020 and time 23:40:40 (Italy) in region 6 km E Bronte (CT)

A magnitude ML 2.7 earthquake occured in region: 6 km E Bronte (CT), on

  • 06-12-2020 22:40:40 (UTC)
  • 06-12-2020 23:40:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.775, 14.903 at 28 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Maletto CT 7 3920 23092
Randazzo CT 12 10900 33992
Maniace CT 13 3765 37757
Adrano CT 14 36122 73879
Biancavilla CT 15 24007 97886
Ragalna CT 16 3924 101810
Santa Domenica Vittoria ME 17 980 102790
Santa Maria di Licodia CT 18 7641 110431
Cesarò ME 18 2439 112870
Moio Alcantara ME 19 717 113587
Milo CT 20 1087 114674
San Teodoro ME 20 1403 116077
Zafferana Etnea CT 20 9517 125594

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
74 Km SW of Messina (238439 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
87 Km NW of Siracusa (122291 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
98 Km NE of Gela (75827 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire *

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.7 2020-12-06
22:40:40
37.7748 14.9028 28 2021-02-26
14:56:19
Bollettino Sismico Italiano INGV 87307431
Reviewed
Rev200
ML 2.6 2020-12-06
22:40:41
37.791 14.908 18 2021-02-19
23:08:26
Sala Operativa INGV_OE (Catania) 85254331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-06 22:40:40 ± 0.16
Latitude 37.7748 ± 0.0063
Longitude 14.9028 ± 0.0102
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87307431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 782
Semi-minor axis of confidence ellipse (meter) 573
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.69877
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 87307431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-19 23:08:03

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 85254331
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-12-06 23:24:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IFIL.HHE. 2020-12-06T22:41:09.47 3.0 undecidable manual S 0.47 0
IV.HAVL.HHN. 2020-12-06T22:41:08.30 3.0 undecidable manual S 0.18 0
IV.HMDC.HHN. 2020-12-06T22:41:08.14 3.0 undecidable manual S 0.28 0
IV.ACATE.EHN. 2020-12-06T22:41:08.57 3.0 undecidable manual S 0.78 0
IV.SSY.HHE. 2020-12-06T22:41:02.58 0.6 undecidable manual S 168 0.6313 106 0.09 46
IV.HAGA.HHE. 2020-12-06T22:40:59.29 0.6 undecidable manual S 158 0.5288 109 -0.3 46
IV.HLNI.HHN. 2020-12-06T22:40:56.47 0.6 undecidable manual S 183 0.4272 114 -0.31 47
IV.MSRU.HHN. 2020-12-06T22:40:54.21 0.6 undecidable manual P 44 0.6826 105 0.08 46
IV.RAFF.HHE. 2020-12-06T22:40:54.56 0.3 undecidable manual P 218 0.6988 104 0.17 67
IV.PLLN.EHE. 2020-12-06T22:40:53.61 1.0 undecidable manual P 290 0.6376 106 0.23 22
IV.SSY.HHE. 2020-12-06T22:40:52.71 0.6 undecidable manual P 168 0.6313 106 -0.57 42
IV.HAGA.HHE. 2020-12-06T22:40:51.33 0.6 undecidable manual P 158 0.5288 109 -0.28 46
IV.ECTS.HHN. 2020-12-06T22:40:51.46 0.6 undecidable manual S 58 0.2032 137 0.18 50
IV.ESML.HHE. 2020-12-06T22:40:50.48 0.6 undecidable manual S 187 0.1574 144 0.05 52
IV.HLNI.HHN. 2020-12-06T22:40:50.62 0.3 undecidable manual P 183 0.4272 114 0.63 63
IV.EPIT.HHN. 2020-12-06T22:40:50.59 0.6 undecidable manual S 73 0.1268 150 0.66 45
IV.EMCN.HHZ. 2020-12-06T22:40:50.04 0.6 undecidable manual S 81 0.1043 155 0.41 49
IV.ESLN.HHN. 2020-12-06T22:40:49.79 3.0 undecidable manual S 0.41 0
IV.MSFR.HHZ. 2020-12-06T22:40:49.14 0.6 undecidable manual P 317 0.357 119 0.23 48
IV.EPZF.HHE. 2020-12-06T22:40:49.19 0.6 undecidable manual S 324 0.0612 165 0.01 53
IV.GALF.HHN. 2020-12-06T22:40:48.23 0.6 undecidable manual P 257 0.2734 127 0.51 45
IV.EMSG.HHN. 2020-12-06T22:40:48.88 0.6 undecidable manual S 39 0.0594 165 -0.28 50
IV.EPOZ.HHZ. 2020-12-06T22:40:47.84 0.3 undecidable manual P 114 0.2482 130 0.47 70
IV.MUCR.HHZ. 2020-12-06T22:40:47.63 0.3 undecidable manual P 355 0.2689 128 -0.02 77
IV.EFIU.HHE. 2020-12-06T22:40:47.68 1.0 undecidable manual P 86 0.2437 131 0.37 24
IV.ECBD.HHN. 2020-12-06T22:40:46.12 0.3 undecidable manual P 88 0.1448 146 -0.08 77
IV.ECTS.HHN. 2020-12-06T22:40:46.63 0.1 undecidable manual P 58 0.2032 137 -0.18 100
IV.EVRN.HHN. 2020-12-06T22:40:46.72 0.6 undecidable manual P 115 0.2032 136 -0.09 51
IV.ESML.HHE. 2020-12-06T22:40:46.31 0.6 undecidable manual P 187 0.1574 144 -0.01 52
IV.EMCN.HHZ. 2020-12-06T22:40:45.95 0.6 undecidable manual P 81 0.1043 155 0.1 52
IV.EMSG.HHN. 2020-12-06T22:40:45.13 0.3 undecidable manual P 39 0.0594 165 -0.46 73
IV.EPZF.HHE. 2020-12-06T22:40:45.07 0.1 undecidable manual P 324 0.0612 165 -0.53 95
IV.EPIT.HHN. 2020-12-06T22:40:45.77 0.3 undecidable manual P 73 0.1268 150 -0.26 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHN. ML:2.9 0.0013386755 0.4992 AML other m 2020-12-06T22:40:55.96
IV.PLLN.EHE. ML:2.9 0.0013316175 0.5504 AML other m 2020-12-06T22:40:55.57
IV.EVRN.HHE. ML:2.8 0.002704573 0.3328 AML other m 2020-12-06T22:40:55.80
IV.EVRN.HHN. ML:2.8 0.002535 1.5 AML other m 2020-12-06T22:40:57.06
IV.EPZF.HHN. ML:3.2 0.0080567565 0.32 AML other m 2020-12-06T22:40:49.97
IV.EPZF.HHE. ML:3.4 0.01274641 0.4992 AML other m 2020-12-06T22:40:49.71
IV.EMCN.HHE. ML:3.1 0.0069638945 0.4352 AML other m 2020-12-06T22:40:50.57
IV.EMCN.HHN. ML:3.3 0.009939604 0.7296 AML other m 2020-12-06T22:40:50.93
IV.EMCN.HNE. ML:3.2 0.007609445 0.5248 AML other m 2020-12-06T22:40:52.20
IV.ECTS.HHN. ML:2.7 0.002185969 0.4352 AML other m 2020-12-06T22:40:52.26
IV.ECTS.HHE. ML:2.7 0.00206300915 0.3584 AML other m 2020-12-06T22:40:52.26
IV.EVRN.HNE. ML:2.7 0.0022739835 0.2432 AML other m 2020-12-06T22:40:56.94
IV.EVRN.HNN. ML:2.8 0.0027338145 0.2688 AML other m 2020-12-06T22:40:59.08
IV.MUCR.HHN. ML:2.4 0.00093475485 0.5248 AML other m 2020-12-06T22:40:47.30
IV.MUCR.HHE. ML:2.4 0.00098346125 0.384 AML other m 2020-12-06T22:40:54.55
IV.GALF.HNE. ML:2.2 0.0005419048 0.4736 AML other m 2020-12-06T22:40:57.34
IV.GALF.HHN. ML:3.2 0.005114638 0.6144 AML other m 2020-12-06T22:40:47.94
IV.GALF.HHE. ML:3.1 0.0045334165 0.5632 AML other m 2020-12-06T22:40:56.11
IV.GALF.HNN. ML:2.2 0.00062344915 0.6656 AML other m 2020-12-06T22:40:47.94
IV.MSFR.HHN. ML:2.1 0.00037005695 0.7552 AML other m 2020-12-06T22:40:51.04
IV.MSFR.HHE. ML:2.1 0.00036434205 0.32 AML other m 2020-12-06T22:40:57.21
IV.HLNI.HHE. ML:2.6 0.00091899775 0.1664 AML other m 2020-12-06T22:40:57.77
IV.HLNI.HHN. ML:2.7 0.0012754281 0.2176 AML other m 2020-12-06T22:40:57.29
IV.HAGA.HHN. ML:2.5 0.00061603765 0.3072 AML other m 2020-12-06T22:41:03.53
IV.HAGA.HHE. ML:2.5 0.00057594505 0.256 AML other m 2020-12-06T22:41:00.08
IV.SSY.HHN. ML:3.6 0.0063299515 0.2944 AML other m 2020-12-06T22:41:07.39
IV.SSY.HHE. ML:3.3 0.003288884 0.3584 AML other m 2020-12-06T22:41:02.93
IV.MSRU.HHE. ML:2.4 0.0003711299 0.4224 AML other m 2020-12-06T22:41:12.51
IV.MSRU.HHN. ML:2.5 0.0004637605 0.4224 AML other m 2020-12-06T22:41:10.68
IV.RAFF.HHE. ML:2.5 0.0003952251 0.4992 AML other m 2020-12-06T22:41:10.36
IV.RAFF.HHN. ML:2.4 0.00038066155 0.8064 AML other m 2020-12-06T22:41:10.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download