INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.8 on date 25-01-2019 and time 03:35:01 (Italy) in region 10 km N Ragalna (CT)

A magnitude ML 1.8 earthquake occured in region: 10 km N Ragalna (CT), on

  • 25-01-2019 02:35:01 (UTC)
  • 25-01-2019 03:35:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.72, 14.95 at 2 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 10 3924 3924
Biancavilla CT 11 24007 27931
Adrano CT 12 36122 64053
Bronte CT 13 19172 83225
Santa Maria di Licodia CT 13 7641 90866
Nicolosi CT 14 7463 98329
Zafferana Etnea CT 14 9517 107846
Maletto CT 14 3920 111766
Milo CT 15 1087 112853
Belpasso CT 15 28108 140961
Pedara CT 15 14102 155063
Trecastagni CT 16 10910 165973
Paternò CT 17 48228 214201
Santa Venerina CT 17 8592 222793
Randazzo CT 17 10900 233693
Sant'Alfio CT 17 1582 235275
San Pietro Clarenza CT 18 7743 243018
Viagrande CT 18 8563 251581
Camporotondo Etneo CT 18 5023 256604
Mascalucia CT 19 31958 288562
Tremestieri Etneo CT 20 20589 309151
Aci Bonaccorsi CT 20 3524 312675
Maniace CT 20 3765 316440

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
75 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
96 Km NE of Gela (75827 inhabitants)
97 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 1.8 2019-01-25
02:35:01
37.72 14.95 2 2019-01-25
02:55:28
Sala Sismica INGV-Roma 64921461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-25 02:35:01 ± 0.15
Latitude 37.72 ± 0.01
Longitude 14.95 ± 0.01
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64921461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1160
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 1160
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.20864
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 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 64921461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-25 02:55:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ESML.HHZ. 2019-01-25T02:35:06.57 0.6 undecidable manual S 208 0.1187 98 0.92 38
IV.EPOZ.HHE. 2019-01-25T02:35:06.01 0.6 undecidable manual P 105 0.1952 95 0.63 42
IV.ECTS.EHE. 2019-01-25T02:35:05.80 0.3 undecidable manual P 40 0.2086 94 0.13 72
IV.EMCN.HNE. 2019-01-25T02:35:05.04 0.3 undecidable manual S 44 0.0944 100 0.32 71
IV.EMSG.HHZ. 2019-01-25T02:35:04.81 0.6 undecidable manual S 360 0.098 99 -0.03 50
IV.EPZF.HHE. 2019-01-25T02:35:04.24 0.6 undecidable manual P 324 0.125 97 0.41 46
IV.ESML.HHZ. 2019-01-25T02:35:03.31 0.1 negative manual P 208 0.1187 98 -0.39 93
IV.ENIC.HHZ. 2019-01-25T02:35:03.47 0.1 undecidable manual P 148 0.1079 99 0.03 100
IV.EMSG.HHZ. 2019-01-25T02:35:03.12 0.1 undecidable manual P 360 0.098 99 -0.11 99
IV.ESLN.HHZ. 2019-01-25T02:35:02.67 0.6 undecidable manual S 148 0.0351 115 0.15 49
IV.EMCN.HNE. 2019-01-25T02:35:02.61 0.3 undecidable manual P 44 0.0944 100 -0.55 67
IV.ESLN.HHZ. 2019-01-25T02:35:01.31 0.3 undecidable manual P 148 0.0351 115 -0.58 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHN. ML:2 0.00148 1.54 AML other m 2019-01-25T02:35:10.88
IV.ESML.HHE. ML:2.1 0.00166 0.3 AML other m 2019-01-25T02:35:07.41
IV.EMSG.HHN. ML:0 0.0008222702 0.76 AML other m 2019-01-25T02:35:07.30
IV.ESLN.HHN. ML:0 0.003871938 0.1808 AML other m 2019-01-25T02:35:02.92
IV.EMSG.HHE. ML:0 0.0005072492 1.0592 AML other m 2019-01-25T02:35:07.25
IV.ESLN.HHE. ML:0 0.003140337 0.1808 AML other m 2019-01-25T02:35:02.94
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