Earthquake with magnitude of ML 1.3 on date 30-07-2020 and time 22:06:20 (Italy) in region 8 km W Vittoria (RG)

A magnitude ML 1.3 earthquake occured in region: 8 km W Vittoria (RG), on

  • 30-07-2020 20:06:20 (UTC)
  • 30-07-2020 22:06:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.95, 14.45 at 9 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
Vittoria RG 8 63339 63339
Acate RG 10 10954 74293
Comiso RG 14 30156 104449
Santa Croce Camerina RG 15 10823 115272
Mazzarrone CT 19 4078 119350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km W of Vittoria (63339 inhabitants)
22 Km SE of Gela (75827 inhabitants)
26 Km W of Ragusa (73313 inhabitants)
30 Km W of Modica (54633 inhabitants)
70 Km SE of Caltanissetta (63360 inhabitants)
76 Km W of Siracusa (122291 inhabitants)
84 Km SW of Catania (314555 inhabitants)
86 Km SE of Agrigento (59770 inhabitants)
98 Km SW of Acireale (52622 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 1.3 2020-07-30
20:06:20
36.95 14.45 9 2020-07-30
20:13:03
Sala Sismica INGV-Roma 81497201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-30 20:06:20 ± 0.14
Latitude 36.95 ± 0.01
Longitude 14.45 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81497201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 800
Semi-minor axis of confidence ellipse (meter) 668
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.6583
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81497201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-30 20:13:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-07-30T20:06:42.95 0.1 undecidable manual S 59 0.6583 50 0.1 90
IV.SSY.HHZ. 2020-07-30T20:06:39.93 0.1 undecidable manual S 67 0.5432 50 0.49 85
IV.HPAC.HHE. 2020-07-30T20:06:39.39 0.1 undecidable manual S 117 0.5297 50 0.35 88
IV.HLNI.HHZ. 2020-07-30T20:06:38.77 0.1 undecidable manual S 40 0.5252 50 -0.14 92
IV.CLTA.HHE. 2020-07-30T20:06:36.53 0.1 undecidable manual S 299 0.4398 50 0.17 93
IV.MEU.EHZ. 2020-07-30T20:06:34.14 0.1 undecidable manual S 62 0.348 50 0.5 88
IV.RAFF.HHZ. 2020-07-30T20:06:32.58 0.3 undecidable manual S 346 0.2833 50 0.85 58
IV.HVZN.HHE. 2020-07-30T20:06:32.47 0.1 undecidable manual S 43 0.3157 50 -0.23 94
IV.HAGA.HHZ. 2020-07-30T20:06:32.95 0.1 undecidable manual P 59 0.6583 50 -0.43 84
IV.SSY.HHZ. 2020-07-30T20:06:31.05 0.1 undecidable manual P 67 0.5432 50 -0.37 87
IV.HPAC.HHE. 2020-07-30T20:06:31.29 0.1 undecidable manual P 117 0.5297 50 0.11 92
IV.HLNI.HHZ. 2020-07-30T20:06:30.63 0.1 undecidable manual P 40 0.5252 50 -0.47 85
IV.CLTA.HHE. 2020-07-30T20:06:29.79 0.1 undecidable manual P 299 0.4398 50 0.15 93
IV.MEU.EHZ. 2020-07-30T20:06:27.86 0.1 undecidable manual P 62 0.348 50 -0.21 94
IV.CROCE.HHZ. 2020-07-30T20:06:26.68 0.1 undecidable manual S 148 0.1349 121 0.16 99
IV.RAFF.HHZ. 2020-07-30T20:06:26.59 0.1 undecidable manual P 346 0.2833 50 -0.37 92
IV.HVZN.HHE. 2020-07-30T20:06:26.77 0.1 undecidable manual P 43 0.3157 50 -0.74 80
IV.ACATE.HNZ. 2020-07-30T20:06:25.22 0.1 undecidable manual S 30 0.0881 133 0.13 100
IV.ACATE.HNZ. 2020-07-30T20:06:23.55 0.1 undecidable manual P 30 0.0881 133 0.42 94
IV.CROCE.HHZ. 2020-07-30T20:06:23.73 0.1 undecidable manual P 148 0.1349 121 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CROCE.HHN. ML:1.2 0.000173 0.2 AML other m 2020-07-30T20:06:26.88
IV.CROCE.HHE. ML:1.2 0.00015125 0.22 AML other m 2020-07-30T20:06:26.84
IV.RAFF.HHE. ML:1 4.46E-5 0.84 AML other m 2020-07-30T20:06:33.61
IV.RAFF.HHN. ML:0.9 3.945E-5 0.74 AML other m 2020-07-30T20:06:33.64
IV.MEU.EHN. ML:1.4 9.03E-5 0.44 AML other m 2020-07-30T20:06:34.43
IV.MEU.EHE. ML:1.2 6.195E-5 0.72 AML other m 2020-07-30T20:06:36.26
IV.HLNI.HHN. ML:1.6 8.905E-5 0.14 AML other m 2020-07-30T20:06:38.92
IV.HLNI.HHE. ML:1.8 0.000142 0.3 AML other m 2020-07-30T20:06:39.04
IV.HAGA.HHN. ML:1.3 3.225E-5 1.3 AML other m 2020-07-30T20:06:45.07
IV.HAGA.HHE. ML:1.3 3.06E-5 1.38 AML other m 2020-07-30T20:06:45.98
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