Earthquake with magnitude of ML 1.9 on date 31-01-2020 and time 10:34:11 (Italy) in region 3 km SE Motta Sant'Anastasia (CT)

A magnitude ML 1.9 earthquake occured in region: 3 km SE Motta Sant'Anastasia (CT), on

  • 31-01-2020 09:34:11 (UTC)
  • 31-01-2020 10:34:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.49, 14.98 at 10 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
Motta Sant'Anastasia CT 3 12116 12116
Misterbianco CT 4 49410 61526
Camporotondo Etneo CT 9 5023 66549
Catania CT 9 314555 381104
San Pietro Clarenza CT 10 7743 388847
Gravina di Catania CT 11 25838 414685
Mascalucia CT 12 31958 446643
Sant'Agata li Battiati CT 12 9479 456122
Belpasso CT 12 28108 484230
PaternĂ² CT 12 48228 532458
Tremestieri Etneo CT 13 20589 553047
San Gregorio di Catania CT 14 11966 565013
San Giovanni la Punta CT 14 23060 588073
Nicolosi CT 15 7463 595536
Pedara CT 16 14102 609638
Valverde CT 16 7840 617478
Aci Castello CT 16 18723 636201
Ragalna CT 17 3924 640125
Aci Bonaccorsi CT 17 3524 643649
Santa Maria di Licodia CT 17 7641 651290
Trecastagni CT 17 10910 662200
Viagrande CT 17 8563 670763
Aci Sant'Antonio CT 18 17984 688747
Aci Catena CT 19 29851 718598
Biancavilla CT 20 24007 742605

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km W of Catania (314555 inhabitants)
21 Km SW of Acireale (52622 inhabitants)
55 Km NW of Siracusa (122291 inhabitants)
66 Km NE of Ragusa (73313 inhabitants)
72 Km NE of Vittoria (63339 inhabitants)
72 Km N of Modica (54633 inhabitants)
80 Km NE of Gela (75827 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
90 Km SW of Reggio di Calabria (183035 inhabitants)
93 Km SW of Messina (238439 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
Rev 100 ML 1.9 2020-01-31
09:34:11
37.49 14.98 10 2020-01-31
09:50:08
Sala Sismica INGV-Roma 76062881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-31 09:34:11 ± 0.92
Latitude 37.49 ± 0.04
Longitude 14.98 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76062881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4760
Semi-minor axis of confidence ellipse (meter) 2330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 4760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 291
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 76062881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-31 09:50:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2020-01-31T09:35:58.94 3.0 undecidable manual Pg 10.35 0
IV.EL6.EHZ. 2020-01-31T09:35:57.82 3.0 undecidable manual Pg 9.69 0
IV.MMUR.HNZ. 2020-01-31T09:35:50.72 3.0 undecidable manual Pn 0.83 0
IV.TOLF.HHZ. 2020-01-31T09:35:48.40 3.0 undecidable manual Pg 12.65 0
IT.RMVT.HGZ. 2020-01-31T09:35:38.81 3.0 undecidable manual Pg 6.52 0
IV.RMP.HHZ. 2020-01-31T09:35:35.32 3.0 negative manual Pg 5.73 0
IV.SENA.HHZ. 2020-01-31T09:35:29.91 3.0 undecidable manual Pn -6.62 0
IV.PTRJ.HNZ. 2020-01-31T09:35:24.83 3.0 undecidable manual Pg 5.8 0
IV.PIPA.HHZ. 2020-01-31T09:34:59.86 3.0 positive manual Pg 1.09 0
IV.CAR1.HHZ. 2020-01-31T09:34:49.01 3.0 undecidable manual Pg -3.8 0
IV.SSY.HHZ. 2020-01-31T09:34:25.02 0.3 undecidable manual S 168 0.3363 50 0.95 57
IV.HVZN.HHE. 2020-01-31T09:34:20.08 1.0 undecidable manual P 215 0.375 50 0.7 21
IV.HAGA.HHZ. 2020-01-31T09:34:20.94 0.3 undecidable manual S 146 0.2428 50 -0.35 73
IV.EPOZ.HHZ. 2020-01-31T09:34:19.52 3.0 undecidable manual P -4.88 0
IV.SSY.HHZ. 2020-01-31T09:34:18.15 0.3 undecidable manual P 168 0.3363 50 -0.56 68
IV.HLNI.HHZ. 2020-01-31T09:34:18.12 0.3 undecidable manual S 213 0.1646 119 -0.5 72
IV.HAGA.HHZ. 2020-01-31T09:34:17.12 0.3 undecidable manual P 146 0.2428 50 0.01 78
IV.HLNI.HHZ. 2020-01-31T09:34:15.86 0.1 undecidable manual P 213 0.1646 119 0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:2.1 0.0009999841 0.4224 AML other m 2020-01-31T09:34:18.34
IV.HLNI.HHN. ML:1.8 0.0004873524 0.3008 AML other m 2020-01-31T09:34:21.20
IV.HAGA.HHE. ML:1.7 0.0002662064 0.5376 AML other m 2020-01-31T09:34:26.60
IV.HAGA.HHN. ML:1.6 0.0002364676 0.544 AML other m 2020-01-31T09:34:23.26
IV.SSY.HHE. ML:2.2 0.0005494487 0.5952 AML other m 2020-01-31T09:34:30.76
IV.SSY.HHN. ML:2.4 0.0009038942 0.4352 AML other m 2020-01-31T09:34:28.01
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