Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 29-06-2020 and time 17:19:48 (Italy) in region 5 km E Comiso (RG)

A magnitude ML 1.5 earthquake occured in region: 5 km E Comiso (RG), on

  • 29-06-2020 15:19:48 (UTC)
  • 29-06-2020 17:19:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.9440, 14.6610 at 19 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
Comiso RG 5 30156 30156
Ragusa RG 7 73313 103469
Chiaramonte Gulfi RG 11 8238 111707
Vittoria RG 11 63339 175046
Modica RG 13 54633 229679
Giarratana RG 17 3048 232727
Scicli RG 17 27077 259804
Acate RG 18 10954 270758
Santa Croce Camerina RG 18 10823 281581
Mazzarrone CT 18 4078 285659
Monterosso Almo RG 19 3032 288691

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Ragusa (73313 inhabitants)
11 Km E of Vittoria (63339 inhabitants)
13 Km NW of Modica (54633 inhabitants)
39 Km E of Gela (75827 inhabitants)
58 Km W of Siracusa (122291 inhabitants)
73 Km SW of Catania (314555 inhabitants)
81 Km SE of Caltanissetta (63360 inhabitants)
87 Km SW of Acireale (52622 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 1.5 2020-06-29
15:19:48		 36.9442 14.6612 19 2020-11-19
12:36:53		 Bollettino Sismico Italiano INGV 81186261
Reviewed
Rev100 		ML 1.6 2020-06-29
15:19:47		 36.9457 14.6472 21 2020-06-29
15:31:08		 Sala Sismica INGV-Roma 80621291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-29 15:19:48 ± 0.23
Latitude 36.9442 ± 0.0099
Longitude 14.6612 ± 0.0113
Depth (km) 19 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81186261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 950
Semi-minor axis of confidence ellipse (meter) 889
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.15019
Epicentral distance of station farthest from the epicenter (degree) 0.59715
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 81186261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-16 16:41:27

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80621291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-29 15:31:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-06-29T15:20:06.84 0.1 undecidable manual S 49 57.7977 100 0.48 85
IV.HLNI.HHZ. 2020-06-29T15:20:03.60 0.1 undecidable manual S 23 48.618 102 -0.34 88
IV.RAFF.HHZ. 2020-06-29T15:20:02.23 0.3 undecidable manual S 320 40.626 106 0.34 68
IV.CLTA.HHN. 2020-06-29T15:20:00.37 0.3 undecidable manual P 291 66.2781 98 0.36 65
IV.HAGA.HHZ. 2020-06-29T15:19:58.64 0.1 positive manual P 49 57.7977 100 -0.08 92
IV.MEU.EHZ. 2020-06-29T15:19:57.92 0.1 undecidable manual S 39 23.754 120 0.2 96
IV.CROCE.HHZ. 2020-06-29T15:19:56.13 0.1 undecidable manual S 222 16.6722 132 -0.05 100
IV.HLNI.HHZ. 2020-06-29T15:19:56.94 0.1 negative manual P 23 48.618 102 -0.39 88
IV.RAFF.HHZ. 2020-06-29T15:19:55.87 0.1 undecidable manual P 320 40.626 106 -0.27 91
IV.MEU.EHZ. 2020-06-29T15:19:53.83 0.1 positive manual P 39 23.754 120 0.09 98
IV.CROCE.HHZ. 2020-06-29T15:19:52.70 0.1 positive manual P 222 16.6722 132 -0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CROCE.HHE. ML:1.5 0.0002125 0.24 AML other m 2020-06-29T15:19:56.22
IV.CROCE.HNN. ML:1.8 0.0003595 0.3 AML other m 2020-06-29T15:19:56.24
IV.CROCE.HHN. ML:1.7 0.000324 0.3 AML other m 2020-06-29T15:19:56.24
IV.MEU.EHN. ML:1.6 0.00018839499999999997 0.2944 AML other m 2020-06-29T15:19:58.48
IV.MEU.EHE. ML:1.1 0.000058354255 0.6016 AML other m 2020-06-29T15:19:58.37
IV.HLNI.HHE. ML:1.3 0.0000550525 0.1792 AML other m 2020-06-29T15:20:03.78
IV.HLNI.HHN. ML:1.3 0.00005363928 0.1152 AML other m 2020-06-29T15:20:04.02
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