Earthquake with magnitude of ML 1.5 on date 25-10-2020 and time 08:46:58 (Italy) in region 5 km W Licodia Eubea (CT)

A magnitude ML 1.5 earthquake occured in region: 5 km W Licodia Eubea (CT), on

  • 25-10-2020 07:46:58 (UTC)
  • 25-10-2020 08:46:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.16, 14.64 at 22 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
Licodia Eubea CT 5 3081 3081
Grammichele CT 7 13418 16499
Vizzini CT 9 6241 22740
Mazzarrone CT 11 4078 26818
Mineo CT 13 5159 31977
Monterosso Almo RG 13 3032 35009
Caltagirone CT 15 38686 73695
Chiaramonte Gulfi RG 15 8238 81933
Giarratana RG 18 3048 84981
Buccheri SR 19 1999 86980
Militello in Val di Catania CT 19 7443 94423
Acate RG 20 10954 105377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Vittoria (63339 inhabitants)
27 Km N of Ragusa (73313 inhabitants)
35 Km N of Modica (54633 inhabitants)
36 Km E of Gela (75827 inhabitants)
55 Km SW of Catania (314555 inhabitants)
59 Km W of Siracusa (122291 inhabitants)
64 Km SE of Caltanissetta (63360 inhabitants)
69 Km SW of Acireale (52622 inhabitants)
95 Km E of Agrigento (59770 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
Reviewed
Rev100
ML 1.5 2020-10-25
07:46:58
37.16 14.64 22 2020-10-25
07:56:32
Sala Sismica INGV-Roma 84110651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 07:46:58 ± 0.3
Latitude 37.16 ± 0.01
Longitude 14.64 ± 0.01
Depth (km) 22 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84110651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1099
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 84110651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 07:56:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2020-10-25T07:47:15.17 1.0 undecidable manual S 117 0.4299 106 0.89 20
IV.RAFF.HHZ. 2020-10-25T07:47:09.66 0.6 undecidable manual S 286 0.2329 123 0.73 42
IV.HLNI.HHZ. 2020-10-25T07:47:09.84 0.6 undecidable manual S 44 0.2644 119 0.12 51
IV.HAVL.HHZ. 2020-10-25T07:47:08.27 0.6 positive manual P 117 0.4299 106 0.59 44
IV.HMDC.HHZ. 2020-10-25T07:47:08.70 0.6 undecidable manual S 151 0.2275 123 -0.09 51
IV.HAGA.HHZ. 2020-10-25T07:47:07.63 0.1 undecidable manual P 72 0.4272 107 0 100
IV.SSY.HHZ. 2020-10-25T07:47:06.51 1.0 undecidable manual P 90 0.3426 112 0.23 24
IV.HCRL.HHN. 2020-10-25T07:47:06.10 0.6 undecidable manual P 68 0.3345 112 -0.04 51
IV.HVZN.HHE. 2020-10-25T07:47:05.51 1.0 undecidable manual S 70 0.0612 160 -0.14 26
IV.HLNI.HHZ. 2020-10-25T07:47:04.89 0.6 undecidable manual P 44 0.2644 119 -0.16 50
IV.RAFF.HHZ. 2020-10-25T07:47:04.15 0.6 undecidable manual P 286 0.2329 123 -0.44 48
IV.HMDC.HHZ. 2020-10-25T07:47:04.15 0.1 negative manual P 151 0.2275 123 -0.36 96
IV.HVZN.HHE. 2020-10-25T07:47:02.49 0.6 undecidable manual P 70 0.0612 160 -0.21 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HNE. ML:1.4 0.00011675473 2.1056 AML other m 2020-10-25T07:47:09.03
IV.HMDC.HHE. ML:1.4 0.0001085397 0.1024 AML other m 2020-10-25T07:47:08.99
IV.HMDC.HHN. ML:1.6 0.00016053515 0.0768 AML other m 2020-10-25T07:47:08.98
IV.HMDC.HNN. ML:1.4 0.000123656165 0.3008 AML other m 2020-10-25T07:47:12.98
IV.RAFF.HHN. ML:1.6 0.00018399865 0.48 AML other m 2020-10-25T07:47:09.95
IV.RAFF.HHE. ML:1.5 0.00012754544 0.2048 AML other m 2020-10-25T07:47:09.97
IV.HLNI.HHN. ML:1.7 0.00019051225 0.1408 AML other m 2020-10-25T07:47:10.03
IV.HLNI.HHE. ML:1.6 0.0001823881 0.16 AML other m 2020-10-25T07:47:10.04
IV.HAVL.HHE. ML:1.6 9.1464805E-5 0.1024 AML other m 2020-10-25T07:47:17.77
IV.HAVL.HHN. ML:1.7 0.0001244858 0.1408 AML other m 2020-10-25T07:47:17.03
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