Earthquake with magnitude of ML 2.5 on date 20-10-2018 and time 11:54:58 (Italy) in region 2 km NW Belpasso (CT)

A magnitude ML 2.5 earthquake occured in region: 2 km NW Belpasso (CT), on

  • 20-10-2018 09:54:58 (UTC)
  • 20-10-2018 11:54:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.61, 14.96 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Belpasso CT 3 28108 28108
Ragalna CT 3 3924 32032
Paternò CT 6 48228 80260
Nicolosi CT 6 7463 87723
Camporotondo Etneo CT 6 5023 92746
Santa Maria di Licodia CT 6 7641 100387
San Pietro Clarenza CT 7 7743 108130
Biancavilla CT 9 24007 132137
Pedara CT 9 14102 146239
Mascalucia CT 9 31958 178197
Gravina di Catania CT 11 25838 204035
Misterbianco CT 11 49410 253445
Tremestieri Etneo CT 11 20589 274034
Trecastagni CT 11 10910 284944
Motta Sant'Anastasia CT 11 12116 297060
Sant'Agata li Battiati CT 12 9479 306539
Viagrande CT 12 8563 315102
San Giovanni la Punta CT 12 23060 338162
Adrano CT 13 36122 374284
Aci Bonaccorsi CT 13 3524 377808
San Gregorio di Catania CT 14 11966 389774
Aci Sant'Antonio CT 15 17984 407758
Valverde CT 15 7840 415598
Zafferana Etnea CT 16 9517 425115
Aci Catena CT 16 29851 454966
Catania CT 16 314555 769521
Aci Castello CT 17 18723 788244
Santa Venerina CT 18 8592 796836
Acireale CT 18 52622 849458
Milo CT 19 1087 850545
Centuripe EN 19 5470 856015

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Catania (314555 inhabitants)
18 Km W of Acireale (52622 inhabitants)
68 Km NW of Siracusa (122291 inhabitants)
79 Km N of Ragusa (73313 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
82 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km NE of Vittoria (63339 inhabitants)
84 Km SW of Messina (238439 inhabitants)
85 Km N of Modica (54633 inhabitants)
87 Km NE of Gela (75827 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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 1000 ML 2.5 2018-10-20
09:54:58
37.61 14.96 1 2019-06-04
09:16:14
Bollettino Sismico Italiano INGV 68088641
Rev 200 ML 2.9 2018-10-20
09:54:57
37.61 14.98 0 2019-04-29
11:45:22
Sala Operativa INGV-OE (Catania) 62133851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-20 09:54:58 ± 0.26
Latitude 37.61 ± 0.01
Longitude 14.96 ± 0.01
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68088641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1590
Semi-minor axis of confidence ellipse (meter) 1080
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.44067
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 68088641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-29 11:44:56

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 62133851
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-10-20 10:25:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAGR.HHZ. 2018-10-20T09:55:12.35 0.3 undecidable manual S 272 0.3642 91 -0.61 71
IV.MUCR.HHZ. 2018-10-20T09:55:08.30 0.3 undecidable manual P 351 0.4389 91 -0.4 75
IV.NOV.HHE. 2018-10-20T09:55:08.04 0.3 undecidable manual P 18 0.4407 91 -0.71 67
IV.MNO.SHZ. 2018-10-20T09:55:08.46 0.1 undecidable manual P 327 0.3831 91 0.99 80
IV.CAGR.HHZ. 2018-10-20T09:55:08.14 0.3 undecidable manual P 272 0.3642 91 1.1 57
IV.HAGA.HHZ. 2018-10-20T09:55:06.92 0.3 undecidable manual P 154 0.3597 91 -0.01 83
IV.EMCN.HNZ. 2018-10-20T09:55:06.38 0.6 undecidable manual S 18 0.1907 91 0.08 56
IV.GALF.HHZ. 2018-10-20T09:55:05.43 0.6 undecidable manual P 288 0.3274 91 -0.78 45
IV.EPZF.HHZ. 2018-10-20T09:55:04.16 0.3 undecidable manual P 339 0.2293 91 0.12 83
IV.EPOZ.HHZ. 2018-10-20T09:55:03.56 0.3 undecidable manual P 71 0.1916 91 0.35 79
IV.EMCN.HNZ. 2018-10-20T09:55:03.08 0.3 undecidable manual P 18 0.1907 91 -0.11 84
IV.ESML.HHE. 2018-10-20T09:55:01.98 0.3 undecidable manual S 278 0.0639 94 0.57 77
IV.ESML.HHE. 2018-10-20T09:54:59.74 0.1 positive manual P 278 0.0639 94 -0.63 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAGR.HHE. ML:0 0.00138042955 1.2992 AML other m 2018-10-20T09:55:22.60
IV.CAGR.HHN. ML:0 0.0011863362 1.4336 AML other m 2018-10-20T09:55:25.27
IV.MNO.SHE. ML:0 0.002325 0.44 AML other m 2018-10-20T09:55:26.72
IV.MNO.SHN. ML:0 0.002248345 0.6784 AML other m 2018-10-20T09:55:26.24
IV.EPZF.HHN. ML:2.7 0.002940686 0.4608 AML other m 2018-10-20T09:55:12.98
IV.EPZF.HHE. ML:2.6 0.002795771 0.8448 AML other m 2018-10-20T09:55:13.89
IV.GALF.HNE. ML:1.8 0.000281364 0.8 AML other m 2018-10-20T09:55:18.23
IV.GALF.HNN. ML:1.8 0.00024376125 0.5504 AML other m 2018-10-20T09:55:16.50
IV.GALF.HHE. ML:2.3 0.0008374126 0.6016 AML other m 2018-10-20T09:55:17.24
IV.GALF.HHN. ML:2.2 0.0007376673 0.4992 AML other m 2018-10-20T09:55:17.02
IV.MUCR.HHE. ML:2.5 0.0009882427 0.64 AML other m 2018-10-20T09:55:27.38
IV.MUCR.HHN. ML:2.6 0.0012432195 0.5376 AML other m 2018-10-20T09:55:25.67
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download