Earthquake with magnitude of ML 1.8 on date 10-07-2020 and time 02:45:15 (Italy) in region 6 km S Sortino (SR)

A magnitude ML 1.8 earthquake occured in region: 6 km S Sortino (SR), on

  • 10-07-2020 00:45:15 (UTC)
  • 10-07-2020 02:45:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.11, 15.02 at 6 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
Sortino SR 6 8690 8690
Cassaro SR 6 821 9511
Ferla SR 7 2523 12034
Solarino SR 9 8091 20125
Canicattini Bagni SR 10 7109 27234
Palazzolo Acreide SR 11 8808 36042
Buscemi SR 12 1051 37093
Melilli SR 12 13621 50714
Floridia SR 13 22762 73476
Buccheri SR 15 1999 75475
Priolo Gargallo SR 16 12091 87566
Francofonte SR 18 12800 100366
Carlentini SR 18 17798 118164
Lentini SR 19 24085 142249

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Siracusa (122291 inhabitants)
33 Km NE of Ragusa (73313 inhabitants)
36 Km NE of Modica (54633 inhabitants)
44 Km S of Catania (314555 inhabitants)
46 Km E of Vittoria (63339 inhabitants)
57 Km S of Acireale (52622 inhabitants)
68 Km E of Gela (75827 inhabitants)
94 Km E of Caltanissetta (63360 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 2020-07-10
00:45:15
37.11 15.02 6 2020-07-10
00:50:30
Sala Sismica INGV-Roma 80915901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-10 00:45:15 ± 0.14
Latitude 37.11 ± 0.01
Longitude 15.02 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80915901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 871
Semi-minor axis of confidence ellipse (meter) 613
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 323
Circular confidence region, given by single value of horizontal uncertainty (meter) 870
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 1.0657
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 12
Type of magnitude ML
Reference to an origin 80915901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-10 00:50:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2020-07-10T00:45:35.29 0.3 undecidable manual S 282 0.5306 50 0.51 65
IV.MPNC.HHZ. 2020-07-10T00:45:35.46 1.0 negative manual P 14 1.0657 50 -0.26 19
IV.CROCE.HHZ. 2020-07-10T00:45:33.17 0.6 undecidable manual S 234 0.4757 50 0.03 47
IV.HPAC.HHZ. 2020-07-10T00:45:31.59 0.6 undecidable manual S 177 0.4056 50 0.52 40
IV.HLNI.HHZ. 2020-07-10T00:45:26.17 0.6 undecidable manual S 334 0.2608 101 0.61 43
IV.RAFF.HHZ. 2020-07-10T00:45:26.87 1.0 positive manual P 282 0.5306 50 0.3 22
IV.CROCE.HHZ. 2020-07-10T00:45:24.72 0.6 negative manual P 234 0.4757 50 -0.9 36
IV.HPAC.HHZ. 2020-07-10T00:45:24.48 0.6 undecidable manual P 177 0.4056 50 0.05 46
IV.HAGA.HHZ. 2020-07-10T00:45:23.19 0.6 undecidable manual S 33 0.2041 104 -0.25 47
IV.MEU.EHZ. 2020-07-10T00:45:21.33 0.6 undecidable manual S 269 0.1475 108 -0.01 49
IV.HLNI.HHZ. 2020-07-10T00:45:20.69 0.6 negative manual P 334 0.2608 101 -0.56 43
IV.HAGA.HHZ. 2020-07-10T00:45:19.58 0.6 positive manual P 33 0.2041 104 -0.44 45
IV.SSY.HHZ. 2020-07-10T00:45:19.02 0.6 undecidable manual S 47 0.0639 128 0.56 44
IV.MEU.EHZ. 2020-07-10T00:45:18.50 0.1 positive manual P 269 0.1475 108 -0.31 96
IV.SSY.HHZ. 2020-07-10T00:45:17.21 0.1 undecidable manual P 47 0.0639 128 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MEU.EHE. ML:2.2 0.001745 0.62 AML other m 2020-07-10T00:45:23.92
IV.MEU.EHN. ML:2.5 0.003525 1.66 AML other m 2020-07-10T00:45:25.97
IV.HAGA.HHN. ML:1.6 0.000269 1.06 AML other m 2020-07-10T00:45:26.70
IV.HAGA.HHE. ML:1.7 0.000353 0.6 AML other m 2020-07-10T00:45:26.04
IV.HLNI.HHE. ML:1.6 0.0002095 0.26 AML other m 2020-07-10T00:45:29.19
IV.HPAC.HHE. ML:2 0.0003065 0.12 AML other m 2020-07-10T00:45:31.81
IV.HLNI.HHN. ML:1.5 0.0001625 1.26 AML other m 2020-07-10T00:45:32.28
IV.CROCE.HHE. ML:1.3 4.585E-5 0.48 AML other m 2020-07-10T00:45:33.33
IV.CROCE.HHN. ML:1.4 5.815E-5 0.28 AML other m 2020-07-10T00:45:41.58
IV.HPAC.HHN. ML:1.9 0.0002635 0.84 AML other m 2020-07-10T00:45:42.41
IV.MPNC.HHE. ML:1.9 5.845E-5 0.42 AML other m 2020-07-10T00:45:56.53
IV.MPNC.HHN. ML:1.9 6.42E-5 0.56 AML other m 2020-07-10T00:45:58.21
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