ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.9 on date 25-03-2019 and time 15:59:50 (Italy) in region 1 km E Ragalna (CT)

A magnitude ML 1.9 earthquake occured in region: 1 km E Ragalna (CT), on

  • 25-03-2019 14:59:50 (UTC)
  • 25-03-2019 15:59:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.63, 14.95 at 1 km depth.

The earthquake was located by: Sala Operativa INGV-OE (Catania).

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 1 3924 3924
Belpasso CT 5 28108 32032
Santa Maria di Licodia CT 6 7641 39673
Nicolosi CT 7 7463 47136
Paternò CT 7 48228 95364
Biancavilla CT 7 24007 119371
Camporotondo Etneo CT 8 5023 124394
San Pietro Clarenza CT 9 7743 132137
Pedara CT 10 14102 146239
Mascalucia CT 11 31958 178197
Adrano CT 11 36122 214319
Trecastagni CT 11 10910 225229
Tremestieri Etneo CT 12 20589 245818
Gravina di Catania CT 12 25838 271656
Misterbianco CT 13 49410 321066
Motta Sant'Anastasia CT 13 12116 333182
Viagrande CT 13 8563 341745
Sant'Agata li Battiati CT 14 9479 351224
San Giovanni la Punta CT 14 23060 374284
Aci Bonaccorsi CT 14 3524 377808
San Gregorio di Catania CT 15 11966 389774
Zafferana Etnea CT 15 9517 399291
Aci Sant'Antonio CT 16 17984 417275
Valverde CT 16 7840 425115
Aci Catena CT 17 29851 454966
Santa Venerina CT 18 8592 463558
Milo CT 18 1087 464645
Catania CT 18 314555 779200
Centuripe EN 19 5470 784670
Aci Castello CT 19 18723 803393
Acireale CT 19 52622 856015

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Catania (314555 inhabitants)
19 Km W of Acireale (52622 inhabitants)
70 Km NW of Siracusa (122291 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
80 Km N of Ragusa (73313 inhabitants)
81 Km SW of Reggio di Calabria (183035 inhabitants)
83 Km SW of Messina (238439 inhabitants)
84 Km NE of Vittoria (63339 inhabitants)
87 Km N of Modica (54633 inhabitants)
88 Km NE of Gela (75827 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 200 ML 1.9 2019-03-25
14:59:50
37.63 14.95 1 2019-03-25
15:50:21
Sala Operativa INGV-OE (Catania) 66913871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-25 14:59:50
Latitude 37.63
Longitude 14.95
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-CT
Event type earthquake
Origin ID 66913871

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 66913871
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2019-03-25 15:50:21
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