Earthquake with magnitude of ML 1.7 on date 26-09-2020 and time 02:53:21 (Italy) in region Costa Catanese (Catania)

A magnitude ML 1.7 earthquake occured in region: Costa Catanese (Catania), on

  • 26-09-2020 00:53:21 (UTC)
  • 26-09-2020 02:53:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.47, 15.16 at 11 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
Catania CT 7 314555 314555
Aci Castello CT 10 18723 333278
San Gregorio di Catania CT 12 11966 345244
Sant'Agata li Battiati CT 13 9479 354723
Valverde CT 13 7840 362563
Gravina di Catania CT 14 25838 388401
San Giovanni la Punta CT 14 23060 411461
Tremestieri Etneo CT 15 20589 432050
Misterbianco CT 15 49410 481460
Mascalucia CT 15 31958 513418
Aci Bonaccorsi CT 16 3524 516942
Aci Catena CT 16 29851 546793
Aci Sant'Antonio CT 16 17984 564777
Acireale CT 17 52622 617399
San Pietro Clarenza CT 17 7743 625142
Viagrande CT 17 8563 633705
Motta Sant'Anastasia CT 17 12116 645821
Camporotondo Etneo CT 18 5023 650844
Trecastagni CT 18 10910 661754
Pedara CT 19 14102 675856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SE of Catania (314555 inhabitants)
17 Km S of Acireale (52622 inhabitants)
47 Km N of Siracusa (122291 inhabitants)
71 Km NE of Ragusa (73313 inhabitants)
76 Km NE of Modica (54633 inhabitants)
79 Km NE of Vittoria (63339 inhabitants)
84 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km SW of Messina (238439 inhabitants)
92 Km NE of Gela (75827 inhabitants)
97 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 1.7 2020-09-26
00:53:21
37.46 15.16 11 2020-09-26
01:03:17
Sala Sismica INGV-Roma 83258441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-26 00:53:21 ± 0.11
Latitude 37.46 ± 0.01
Longitude 15.16 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83258441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 870
Semi-minor axis of confidence ellipse (meter) 580
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
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) 158
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.20684
Epicentral distance of station farthest from the epicenter (degree) 0.31386
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:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83258441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-26 01:03:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-09-26T00:53:33.32 0.3 undecidable manual S 192 0.3139 50 0.31 70
IV.HCRL.HHZ. 2020-09-26T00:53:30.00 0.3 undecidable manual S 208 0.2068 50 0.17 74
IV.HLNI.HHZ. 2020-09-26T00:53:30.92 0.3 undecidable manual S 243 0.2536 50 -0.31 71
IV.AGST.EHZ. 2020-09-26T00:53:29.97 0.3 undecidable manual S 165 0.2158 50 -0.14 74
IV.SSY.HHZ. 2020-09-26T00:53:28.05 0.6 positive manual P 192 0.3139 50 0.01 50
IV.ESML.HHE. 2020-09-26T00:53:27.51 0.6 undecidable manual P 305 0.2671 50 0.26 48
IV.HCRL.HHZ. 2020-09-26T00:53:26.28 0.1 negative manual P 208 0.2068 50 0.08 100
IV.EVRN.HHE. 2020-09-26T00:53:26.95 0.6 undecidable manual P 356 0.2248 50 0.43 46
IV.HLNI.HHZ. 2020-09-26T00:53:26.83 0.6 undecidable manual P 243 0.2536 50 -0.18 49
IT.LNT.HGE. 2020-09-26T00:53:26.29 0.3 undecidable manual P 215 0.214 50 -0.05 75
IV.AGST.EHZ. 2020-09-26T00:53:26.23 0.1 negative manual P 165 0.2158 50 -0.13 99
IV.EPOZ.HHE. 2020-09-26T00:53:25.86 0.6 undecidable manual P 7 0.2086 50 -0.38 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AGST.EHE. ML:1.4 0.000140720775 0.12 AML other m 2020-09-26T00:53:30.71
IV.AGST.EHN. ML:1.7 0.0003046517 1.3 AML other m 2020-09-26T00:53:30.12
IV.HCRL.HHE. ML:2.1 0.0007755334 0.18 AML other m 2020-09-26T00:53:30.32
IV.HCRL.HHN. ML:1.7 0.00029151285 0.12 AML other m 2020-09-26T00:53:30.51
IV.HLNI.HHE. ML:1.6 0.0002125611 0.18 AML other m 2020-09-26T00:53:31.07
IV.HLNI.HHN. ML:1.4 0.00014636133 0.1 AML other m 2020-09-26T00:53:31.56
IV.SSY.HHE. ML:1.5 0.000136944765 0.48 AML other m 2020-09-26T00:53:34.57
IV.SSY.HHN. ML:2 0.0003742991 0.22 AML other m 2020-09-26T00:53:36.78
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