ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.9 on date 12-01-2019 and time 08:43:21 (Italy) in region 8 km NE Ragalna (CT)

A magnitude ML 1.9 earthquake occured in region: 8 km NE Ragalna (CT), on

  • 12-01-2019 07:43:21 (UTC)
  • 12-01-2019 08:43:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7, 14.98 at 8 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
Ragalna CT 8 3924 3924
Nicolosi CT 10 7463 11387
Biancavilla CT 11 24007 35394
Zafferana Etnea CT 11 9517 44911
Belpasso CT 12 28108 73019
Pedara CT 12 14102 87121
Santa Maria di Licodia CT 12 7641 94762
Trecastagni CT 13 10910 105672
Milo CT 13 1087 106759
Adrano CT 13 36122 142881
San Pietro Clarenza CT 14 7743 150624
Viagrande CT 14 8563 159187
Camporotondo Etneo CT 14 5023 164210
Santa Venerina CT 15 8592 172802
Paternò CT 15 48228 221030
Mascalucia CT 15 31958 252988
Tremestieri Etneo CT 16 20589 273577
Sant'Alfio CT 16 1582 275159
Aci Bonaccorsi CT 16 3524 278683
Bronte CT 16 19172 297855
Aci Sant'Antonio CT 17 17984 315839
Gravina di Catania CT 17 25838 341677
San Giovanni la Punta CT 17 23060 364737
Maletto CT 18 3920 368657
Sant'Agata li Battiati CT 18 9479 378136
Aci Catena CT 18 29851 407987
Valverde CT 19 7840 415827
San Gregorio di Catania CT 19 11966 427793
Giarre CT 19 27659 455452
Acireale CT 19 52622 508074
Misterbianco CT 20 49410 557484

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Acireale (52622 inhabitants)
24 Km NW of Catania (314555 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
75 Km SW of Messina (238439 inhabitants)
76 Km NW of Siracusa (122291 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Gela (75827 inhabitants)
95 Km N of Modica (54633 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 2019-01-12
07:43:21
37.7 14.97 8 2019-01-12
08:04:17
Sala Sismica INGV-Roma 64636751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-12 07:43:21 ± 0.16
Latitude 37.70 ± 0.01
Longitude 14.97 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64636751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1119
Semi-minor axis of confidence ellipse (meter) 1002
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35523
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 64636751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-12 08:04:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NOV.HHZ. 2019-01-12T07:43:36.08 3.0 undecidable manual S 21 0.3552 50 1.2 0
IV.SSY.HHZ. 2019-01-12T07:43:32.46 3.0 negative manual P -0.62 0
IV.EPOZ.HHE. 2019-01-12T07:43:30.12 3.0 undecidable manual S 98 0.1709 113 1.79 0
IV.MUCR.HHZ. 2019-01-12T07:43:29.61 3.0 positive manual P 0.18 0
IV.EPZF.HHZ. 2019-01-12T07:43:29.23 3.0 undecidable manual S 324 0.1583 114 1.34 0
IV.NOV.HHZ. 2019-01-12T07:43:28.91 0.1 undecidable manual P 21 0.3552 50 -0.19 93
IV.AIO.HHZ. 2019-01-12T07:43:28.81 0.1 undecidable manual P 36 0.3426 50 -0.06 96
IV.EMSG.HHZ. 2019-01-12T07:43:27.37 0.6 undecidable manual S 351 0.1259 120 0.58 44
IV.ESML.HHZ. 2019-01-12T07:43:26.44 0.6 undecidable manual S 224 0.1088 123 0.24 49
IV.EPOZ.HHE. 2019-01-12T07:43:25.65 0.1 undecidable manual P 98 0.1709 113 0.34 94
IV.ESML.HHZ. 2019-01-12T07:43:24.36 0.6 positive manual P 224 0.1088 123 0.27 48
IV.EMSG.HHZ. 2019-01-12T07:43:24.50 0.1 negative manual P 351 0.1259 120 0.07 100
IV.EPZF.HHZ. 2019-01-12T07:43:24.97 0.1 positive manual P 324 0.1583 114 -0.09 99
IV.ESLN.HHZ. 2019-01-12T07:43:23.64 0.6 undecidable manual S 188 0.0027 178 -0.31 49
IV.ESLN.HHZ. 2019-01-12T07:43:22.36 0.1 positive manual P 188 0.0027 178 -0.43 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:1.7 0.000148 0.64 AML other m 2019-01-12T07:43:43.41
IV.ESML.HHN. ML:1.8 0.000851 0.6 AML other m 2019-01-12T07:43:28.64
IV.EPZF.HHE. ML:2.1 0.001058 0.3 AML other m 2019-01-12T07:43:29.68
IV.EMSG.HHE. ML:2.5 0.003195 0.3 AML other m 2019-01-12T07:43:31.80
IV.EPZF.HHN. ML:2.2 0.00136 0.9 AML other m 2019-01-12T07:43:33.81
IV.MUCR.HHE. ML:1.6 0.000155 0.38 AML other m 2019-01-12T07:43:39.97
IV.ESLN.HHE. ML:2.8 0.013454335 0.096 AML other m 2019-01-12T07:43:24.03
IV.ESLN.HHN. ML:2.7 0.0102207555 0.16 AML other m 2019-01-12T07:43:23.88
IV.ESML.HHE. ML:1.9 0.00109482275 0.16 AML other m 2019-01-12T07:43:29.93
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