Earthquake with magnitude of ML 1.8 on date 01-07-2020 and time 23:14:34 (Italy) in region Costa Ragusana (Ragusa)

A magnitude ML 1.8 earthquake occured in region: Costa Ragusana (Ragusa), on

  • 01-07-2020 21:14:34 (UTC)
  • 01-07-2020 23:14:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.7, 14.64 at 20 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
Scicli RG 12 27077 27077
Santa Croce Camerina RG 17 10823 37900
Pozzallo RG 19 19552 57452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Modica (54633 inhabitants)
26 Km SW of Ragusa (73313 inhabitants)
29 Km S of Vittoria (63339 inhabitants)
53 Km SE of Gela (75827 inhabitants)
71 Km SW of Siracusa (122291 inhabitants)
98 Km SW of Catania (314555 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 1.8 2020-07-01
21:14:34
36.7 14.64 20 2020-07-01
21:21:49
Sala Sismica INGV-Roma 80685621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-01 21:14:34 ± 0.37
Latitude 36.70 ± 0.02
Longitude 14.64 ± 0.02
Depth (km) 20 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80685621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1858
Semi-minor axis of confidence ellipse (meter) 1495
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 1860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 293
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.15558
Epicentral distance of station farthest from the epicenter (degree) 1.01084
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 80685621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-01 21:21:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GALF.HHZ. 2020-07-01T21:14:53.31 0.6 undecidable manual P 357 1.0108 95 0.55 53
IV.RAFF.HHZ. 2020-07-01T21:14:53.24 0.6 undecidable manual S 337 0.5657 100 -0.17 63
IV.MEU.EHZ. 2020-07-01T21:14:50.07 0.6 undecidable manual S 20 0.438 103 0.37 62
IV.HVZN.HNE. 2020-07-01T21:14:50.95 0.6 undecidable manual S 7 0.4811 102 0 67
IV.HAGA.HHZ. 2020-07-01T21:14:47.77 0.6 undecidable manual P 35 0.715 97 0.04 63
IV.HLNI.HHZ. 2020-07-01T21:14:46.51 0.6 negative manual P 16 0.6736 98 -0.52 57
IV.RAFF.HHZ. 2020-07-01T21:14:45.34 0.6 negative manual P 337 0.5657 100 0.14 64
IV.MEU.EHZ. 2020-07-01T21:14:43.18 0.6 positive manual P 20 0.438 103 0.12 66
IV.HVZN.HNE. 2020-07-01T21:14:43.52 0.3 undecidable manual P 7 0.4811 102 -0.26 95
IV.CROCE.HHZ. 2020-07-01T21:14:42.12 0.6 undecidable manual S 328 0.1556 132 0.01 71
IV.ACATE.EHZ. 2020-07-01T21:14:40.78 0.6 negative manual P 341 0.3408 108 -0.69 57
IV.CROCE.HHZ. 2020-07-01T21:14:39.05 0.3 negative manual P 328 0.1556 132 0.36 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CROCE.HHE. ML:1.6 0.0002359493 0.1408 AML other m 2020-07-01T21:14:43.04
IV.CROCE.HNE. ML:1.7 0.0002832527 0.1408 AML other m 2020-07-01T21:14:43.04
IV.CROCE.HNN. ML:1.9 0.0004686769 0.192 AML other m 2020-07-01T21:14:43.00
IV.CROCE.HHN. ML:1.7 0.00029529246 0.1024 AML other m 2020-07-01T21:14:43.01
IV.ACATE.EHN. ML:1.4 8.21077465E-5 0.2816 AML other m 2020-07-01T21:14:52.21
IV.ACATE.EHE. ML:1.3 6.331779E-5 0.2048 AML other m 2020-07-01T21:14:53.51
IV.MEU.EHN. ML:2.3 0.00056458825 0.2688 AML other m 2020-07-01T21:14:50.44
IV.MEU.EHE. ML:2 0.00027976495 0.4608 AML other m 2020-07-01T21:14:50.41
IV.RAFF.HHN. ML:1.3 3.89059145E-5 0.2688 AML other m 2020-07-01T21:14:55.46
IV.RAFF.HHE. ML:1.4 4.394622E-5 0.448 AML other m 2020-07-01T21:14:55.73
IV.HLNI.HHE. ML:1.9 0.00012405065 0.1152 AML other m 2020-07-01T21:14:57.73
IV.HLNI.HHN. ML:2.1 0.000177309 0.0896 AML other m 2020-07-01T21:14:56.89
IV.HAGA.HHN. ML:1.5 4.4011915E-5 0.1408 AML other m 2020-07-01T21:15:01.10
IV.HAGA.HHE. ML:1.4 3.6401485E-5 0.2432 AML other m 2020-07-01T21:15:01.68
IV.GALF.HNE. ML:2.1 0.00010305035 0.9984 AML other m 2020-07-01T21:15:08.03
IV.GALF.HNN. ML:2.1 0.0001122366 0.7808 AML other m 2020-07-01T21:15:09.20
IV.GALF.HHN. ML:2.1 0.00010047235 0.8704 AML other m 2020-07-01T21:15:11.78
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