Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 08-01-2020 and time 09:24:12 (Italy) in region 14 km E Ramacca (CT)

A magnitude ML 1.7 earthquake occured in region: 14 km E Ramacca (CT), on

  • 08-01-2020 08:24:12 (UTC)
  • 08-01-2020 09:24:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4390, 14.8380 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ramacca CT 14 10894 10894
Motta Sant'Anastasia CT 14 12116 23010
Palagonia CT 15 16608 39618
Scordia CT 16 17095 56713
Paternò CT 17 48228 104941
Misterbianco CT 18 49410 154351
Castel di Iudica CT 18 4625 158976
Militello in Val di Catania CT 19 7443 166419
Catenanuova EN 19 4866 171285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Catania (314555 inhabitants)
35 Km SW of Acireale (52622 inhabitants)
58 Km N of Ragusa (73313 inhabitants)
58 Km NW of Siracusa (122291 inhabitants)
61 Km NE of Vittoria (63339 inhabitants)
65 Km N of Modica (54633 inhabitants)
66 Km NE of Gela (75827 inhabitants)
69 Km E of Caltanissetta (63360 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2020-01-08
08:24:12		 37.4387 14.838 9 2020-07-18
21:08:22		 Bollettino Sismico Italiano INGV 76836201
Reviewed
Rev100 		ML 1.8 2020-01-08
08:24:12		 37.4478 14.8407 10 2020-01-08
08:33:50		 Sala Sismica INGV-Roma 75379901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-08 08:24:12 ± 0.12
Latitude 37.4387 ± 0.0081
Longitude 14.8380 ± 0.0113
Depth (km) 9 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76836201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.09443
Epicentral distance of station farthest from the epicenter (degree) 0.69518
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75379901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-08 08:33:50

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 76836201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-04 11:41:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2020-01-08T08:24:29.12 0.3 undecidable manual S 240 48.3183 0.48 64
IV.PETRA.HHN. 2020-01-08T08:24:26.50 0.3 undecidable manual P 305 77.1672 50 0.1 66
IV.AIO.HHE. 2020-01-08T08:24:25.23 0.3 undecidable manual P 30 68.4759 50 0.17 66
IV.MUCR.HHE. 2020-01-08T08:24:25.25 0.3 undecidable manual P 3 67.0773 50 0.4 63
IV.HAGA.HHZ. 2020-01-08T08:24:24.57 0.3 undecidable manual S 121 32.745 50 0.09 71
IV.EPIT.HHN. 2020-01-08T08:24:21.89 0.6 undecidable manual P 25 45.621 50 0.36 44
IV.RAFF.HHZ. 2020-01-08T08:24:20.99 0.3 undecidable manual P 240 48.3183 -0.96 52
IV.CAGR.HHE. 2020-01-08T08:24:20.13 0.3 undecidable manual P 304 36.0417 50 0.07 71
IV.EPZF.HHZ. 2020-01-08T08:24:20.73 0.3 undecidable manual P 2 42.8238 50 -0.37 66
IV.GALF.HHZ. 2020-01-08T08:24:20.27 0.3 undecidable manual P 322 38.4282 50 -0.17 69
IV.HAGA.HHZ. 2020-01-08T08:24:19.07 0.3 undecidable manual P 121 32.745 50 -0.48 66
IV.HLNI.HHZ. 2020-01-08T08:24:18.05 0.6 undecidable manual S 163 10.4784 131 0.45 46
IV.HLNI.HHZ. 2020-01-08T08:24:15.55 0.1 negative manual P 163 10.4784 131 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHN. ML:1.7 0.00073787365 0.1792 AML other m 2020-01-08T08:24:18.22
IV.HLNI.HHE. ML:1.7 0.00065266885 0.1024 AML other m 2020-01-08T08:24:19.54
IV.GALF.HNE. ML:1.6 0.00012907815 0.7488 AML other m 2020-01-08T08:24:23.77
IV.HAGA.HHE. ML:1.5 0.00013900574 0.224 AML other m 2020-01-08T08:24:24.71
IV.GALF.HHE. ML:1.6 0.0001596566 0.6016 AML other m 2020-01-08T08:24:25.04
IV.HAGA.HHN. ML:1.2 0.000076922305 0.3392 AML other m 2020-01-08T08:24:25.72
IV.RAFF.HHE. ML:2.1 0.00031304699999999995 0.1984 AML other m 2020-01-08T08:24:29.76
IV.RAFF.HHN. ML:2.0 0.0002685365 0.2432 AML other m 2020-01-08T08:24:29.77
IV.GALF.HNN. ML:1.5 0.00011528479 0.672 AML other m 2020-01-08T08:24:33.19
IV.GALF.HHN. ML:1.6 0.00014882545 0.3968 AML other m 2020-01-08T08:24:35.41
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download