Earthquake with magnitude of ML 2.4 on date 30-10-2020 and time 13:44:21 (Italy) in region 2 km SE Castelbuono (PA)

A magnitude ML 2.4 earthquake occured in region: 2 km SE Castelbuono (PA), on

  • 30-10-2020 12:44:21 (UTC)
  • 30-10-2020 13:44:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.92, 14.1 at 24 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
Castelbuono PA 2 8943 8943
San Mauro Castelverde PA 8 1701 10644
Geraci Siculo PA 8 1945 12589
Isnello PA 9 1589 14178
Pollina PA 10 2974 17152
Petralia Sottana PA 12 2821 19973
Gratteri PA 13 963 20936
Petralia Soprana PA 13 3360 24296
Collesano PA 14 4054 28350
Tusa ME 14 2925 31275
Polizzi Generosa PA 15 3407 34682
Cefalù PA 15 14393 49075
Castellana Sicula PA 16 3411 52486
Gangi PA 16 6811 59297
Lascari PA 17 3588 62885
Pettineo ME 18 1350 64235
Scillato PA 18 613 64848
Blufi PA 18 1029 65877
Castel di Lucio ME 19 1294 67171
Bompietro PA 19 1401 68572
Motta d'Affermo ME 19 739 69311

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km N of Caltanissetta (63360 inhabitants)
55 Km E of Bagheria (55387 inhabitants)
68 Km E of Palermo (674435 inhabitants)
81 Km NE of Agrigento (59770 inhabitants)
96 Km N of Gela (75827 inhabitants)
98 Km NW of Catania (314555 inhabitants)
100 Km W of Acireale (52622 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 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 in the 90 days preceding the time of the current earthquake occurrence, 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

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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
Reviewed
Rev100
ML 2.4 2020-10-30
12:44:21
37.92 14.1 24 2020-10-30
13:02:16
Sala Sismica INGV-Roma 84264161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 12:44:21 ± 0.26
Latitude 37.92 ± 0.01
Longitude 14.10 ± 0.01
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84264161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1273
Semi-minor axis of confidence ellipse (meter) 1100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.62143
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 84264161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 13:02:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-10-30T12:44:43.05 0.6 undecidable manual S 78 0.6214 103 0.31 42
IV.MSFR.HHZ. 2020-10-30T12:44:36.83 0.6 undecidable manual S 73 0.4029 111 0.28 44
IV.RESU.HHZ. 2020-10-30T12:44:33.98 0.6 undecidable manual S 187 0.2725 122 0.9 39
IV.MUCR.HHZ. 2020-10-30T12:44:33.60 1.0 positive manual P 78 0.6214 103 -0.16 22
IV.SCIAR.HHZ. 2020-10-30T12:44:33.60 1.0 undecidable manual S 275 0.2788 121 0.37 22
IV.MSFR.HHZ. 2020-10-30T12:44:30.10 0.3 positive manual P 73 0.4029 111 -0.08 69
IV.GALF.HHZ. 2020-10-30T12:44:30.70 1.0 positive manual P 119 0.4218 110 0.22 23
IV.PETRA.HHZ. 2020-10-30T12:44:29.17 0.6 undecidable manual S 173 0.0845 156 -0.14 48
IV.PLLN.EHZ. 2020-10-30T12:44:29.47 0.6 undecidable manual S 24 0.0818 157 0.19 48
IV.GIB.HHZ. 2020-10-30T12:44:29.92 0.6 undecidable manual S 321 0.0935 154 0.5 44
IV.SCIAR.HHZ. 2020-10-30T12:44:28.47 0.3 negative manual P 275 0.2788 121 0.2 70
IV.RESU.HHZ. 2020-10-30T12:44:28.52 0.6 positive manual P 187 0.2725 122 0.34 46
IV.CSLB.HHZ. 2020-10-30T12:44:28.52 0.6 undecidable manual S 300 0.0396 168 -0.38 47
IV.GIB.HHZ. 2020-10-30T12:44:26.07 0.1 positive manual P 321 0.0935 154 0 100
IV.CSLB.HHZ. 2020-10-30T12:44:25.31 0.1 undecidable manual P 300 0.0396 168 -0.46 92
IV.PETRA.HHZ. 2020-10-30T12:44:25.63 0.1 negative manual P 173 0.0845 156 -0.37 92
IV.PLLN.EHZ. 2020-10-30T12:44:25.86 0.1 negative manual P 24 0.0818 157 -0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:2.4 0.001549807 0.32 AML other m 2020-10-30T12:44:28.84
IV.CSLB.HHN. ML:2.2 0.0011830885 0.2944 AML other m 2020-10-30T12:44:28.81
IV.PETRA.HHE. ML:2.7 0.0033723045 0.3584 AML other m 2020-10-30T12:44:29.85
IV.PETRA.HHN. ML:2.6 0.0027857775 0.3008 AML other m 2020-10-30T12:44:29.48
IV.PLLN.EHE. ML:2.9 0.0052642525 0.4224 AML other m 2020-10-30T12:44:30.56
IV.PLLN.EHN. ML:2.9 0.005469791 0.4608 AML other m 2020-10-30T12:44:29.97
IV.GIB.HHE. ML:2.5 0.0017901235 0.3648 AML other m 2020-10-30T12:44:31.64
IV.GIB.HHN. ML:2.6 0.0022611885 0.3648 AML other m 2020-10-30T12:44:30.38
IV.SCIAR.HHE. ML:2.2 0.0006325408 0.48 AML other m 2020-10-30T12:44:36.91
IV.SCIAR.HHN. ML:2.2 0.0006198264 0.3008 AML other m 2020-10-30T12:44:38.04
IV.SCIAR.HNE. ML:2.2 0.0006461166 0.448 AML other m 2020-10-30T12:44:36.90
IV.SCIAR.HNN. ML:2.2 0.00062158935 0.4096 AML other m 2020-10-30T12:44:36.77
IV.RESU.HHE. ML:2.4 0.00089285575 0.8576 AML other m 2020-10-30T12:44:35.42
IV.RESU.HHN. ML:2.7 0.001857034 0.48 AML other m 2020-10-30T12:44:36.74
IV.MSFR.HHE. ML:2 0.0002516322 0.2368 AML other m 2020-10-30T12:44:38.17
IV.MSFR.HHN. ML:2 0.00028381865 0.3008 AML other m 2020-10-30T12:44:38.16
IV.GALF.HNE. ML:1.6 0.00010395175 0.64 AML other m 2020-10-30T12:44:41.91
IV.GALF.HNN. ML:1.8 0.000167734185 0.8896 AML other m 2020-10-30T12:44:45.18
IV.GALF.HHE. ML:2.5 0.00080425425 0.4608 AML other m 2020-10-30T12:44:41.93
IV.GALF.HHN. ML:2.5 0.00077675755 0.3392 AML other m 2020-10-30T12:44:43.84
IV.MUCR.HHE. ML:2.3 0.00031439955 0.4608 AML other m 2020-10-30T12:44:44.82
IV.MUCR.HHN. ML:2.6 0.00068165625 0.3776 AML other m 2020-10-30T12:44:45.18
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