Earthquake with magnitude of ML 2.3 on date 03-12-2018 and time 05:23:25 (Italy) in region 4 km W Sperlinga (EN)

A magnitude ML 2.3 earthquake occured in region: 4 km W Sperlinga (EN), on

  • 03-12-2018 04:23:25 (UTC)
  • 03-12-2018 05:23:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.75, 14.31 at 59 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
Sperlinga EN 4 805 805
Nicosia EN 8 13899 14704
Gangi PA 11 6811 21515
Leonforte EN 14 13439 34954
Castel di Lucio ME 15 1294 36248
Nissoria EN 16 3000 39248
Assoro EN 17 5191 44439
Capizzi ME 18 3176 47615
Cerami EN 18 2006 49621
Calascibetta EN 18 4528 54149
Geraci Siculo PA 18 1945 56094
Bompietro PA 19 1401 57495
Petralia Soprana PA 19 3360 60855
Alimena PA 19 2032 62887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Caltanissetta (63360 inhabitants)
74 Km W of Catania (314555 inhabitants)
76 Km N of Gela (75827 inhabitants)
77 Km W of Acireale (52622 inhabitants)
79 Km E of Bagheria (55387 inhabitants)
81 Km NE of Agrigento (59770 inhabitants)
91 Km N of Vittoria (63339 inhabitants)
93 Km E of Palermo (674435 inhabitants)
99 Km NW of Ragusa (73313 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 2.3 2018-12-03
04:23:25
37.75 14.31 59 2019-06-04
09:16:18
Bollettino Sismico Italiano INGV 68757671
Rev 100 ML 2.2 2018-12-03
04:23:24
37.75 14.28 59 2018-12-03
04:33:41
Sala Sismica INGV-Roma 63601411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 04:23:25 ± 0.23
Latitude 37.75 ± 0.01
Longitude 14.31 ± 0.01
Depth (km) 59 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68757671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1397
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
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) 0.19695
Epicentral distance of station farthest from the epicenter (degree) 1.09088
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 68757671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-21 11:56:15

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 63601411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 04:33:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2018-12-03T04:23:53.65 0.6 undecidable manual S 134 0.8463 111 0.27 41
IV.HMDC.HHZ. 2018-12-03T04:23:53.53 0.6 undecidable manual S 155 0.8759 110 -0.51 40
IV.HAGA.HHZ. 2018-12-03T04:23:52.05 0.6 undecidable manual S 125 0.8139 112 -0.61 37
IV.IACL.HHZ. 2018-12-03T04:23:51.19 0.3 undecidable manual S 2 0.7815 113 -0.74 50
IV.SOLUN.HHZ. 2018-12-03T04:23:49.43 0.6 undecidable manual S 299 0.7033 116 -0.79 37
IV.HVZN.HHE. 2018-12-03T04:23:49.18 0.3 undecidable manual S 151 0.6565 118 -0.05 68
IV.HLNI.HHZ. 2018-12-03T04:23:47.01 0.6 undecidable manual S 132 0.5989 121 -1.03 33
IV.MBFT.HHZ. 2018-12-03T04:23:45.78 0.1 undecidable manual P 281 1.0909 105 1.16 55
IV.ALJA.HHZ. 2018-12-03T04:23:45.16 0.6 undecidable manual S 270 0.4425 132 0.14 45
IV.MNO.SHZ. 2018-12-03T04:23:44.56 0.6 undecidable manual S 59 0.3498 140 1.08 36
IV.MPNC.HHZ. 2018-12-03T04:23:43.35 0.3 undecidable manual P 64 0.9092 109 1.13 47
MN.CLTB.HHZ. 2018-12-03T04:23:42.64 0.3 undecidable manual P 259 0.8849 109 0.73 52
IV.PLLN.EHZ. 2018-12-03T04:23:42.64 0.6 undecidable manual S 331 0.2752 147 0.23 47
IV.RESU.HHZ. 2018-12-03T04:23:42.52 0.6 undecidable manual S 243 0.2284 152 0.68 40
IV.IFIL.HHZ. 2018-12-03T04:23:41.03 0.3 undecidable manual P 14 0.8373 111 -0.25 61
IV.GALF.HHZ. 2018-12-03T04:23:41.94 0.6 undecidable manual S 102 0.2041 155 0.36 47
IV.SSY.HHZ. 2018-12-03T04:23:41.32 0.1 undecidable manual P 134 0.8463 111 -0.08 86
IV.CSLB.HHZ. 2018-12-03T04:23:41.58 0.6 undecidable manual S 313 0.2734 147 -0.81 39
IV.HMDC.HHZ. 2018-12-03T04:23:41.19 0.1 undecidable manual P 155 0.8759 110 -0.6 76
IV.CORL.HHZ. 2018-12-03T04:23:41.40 0.1 undecidable manual P 280 0.8094 112 0.48 79
IV.FAVR.HHN. 2018-12-03T04:23:40.59 0.1 undecidable manual P 227 0.7051 116 0.98 63
IV.NOV.HHZ. 2018-12-03T04:23:40.34 0.3 undecidable manual P 67 0.7051 116 0.73 59
IV.AIO.HHZ. 2018-12-03T04:23:40.71 0.3 undecidable manual P 73 0.7581 114 0.44 63
IV.HAGA.HHZ. 2018-12-03T04:23:40.50 0.3 undecidable manual P 125 0.8139 112 -0.49 59
IV.IACL.HHZ. 2018-12-03T04:23:39.70 0.3 undecidable manual P 2 0.7815 113 -0.86 49
IV.CLTA.HHZ. 2018-12-03T04:23:39.17 0.1 undecidable manual P 205 0.6556 118 0.17 86
IV.EMSG.HHZ. 2018-12-03T04:23:38.31 0.3 undecidable manual P 82 0.5072 127 1.04 53
IV.CMDO.HHZ. 2018-12-03T04:23:38.16 0.1 undecidable manual P 234 0.4838 129 1.15 61
IV.SOLUN.HHZ. 2018-12-03T04:23:38.92 0.1 undecidable manual P 299 0.7033 116 -0.66 77
IV.HVZN.HHE. 2018-12-03T04:23:38.50 0.1 undecidable manual P 151 0.6565 118 -0.5 83
IV.MUCR.HHZ. 2018-12-03T04:23:38.09 0.1 undecidable manual P 56 0.5288 126 0.58 85
IV.EPZF.HHZ. 2018-12-03T04:23:37.46 0.3 undecidable manual P 80 0.4353 132 0.96 55
IV.HLNI.HHZ. 2018-12-03T04:23:37.42 0.1 undecidable manual P 132 0.5989 121 -0.9 70
IV.ALJA.HHZ. 2018-12-03T04:23:36.22 0.1 undecidable manual P 270 0.4425 132 -0.35 90
IV.MNO.SHZ. 2018-12-03T04:23:35.95 0.1 undecidable manual P 59 0.3498 140 0.26 94
MN.VAE.HHZ. 2018-12-03T04:23:34.93 0.1 undecidable manual P 174 0.2851 146 -0.21 95
IV.CAGR.HHE. 2018-12-03T04:23:34.55 0.1 undecidable manual P 131 0.197 156 0 100
IV.CSLB.HHZ. 2018-12-03T04:23:34.02 0.1 undecidable manual P 313 0.2734 147 -1.04 71
IV.PLLN.EHZ. 2018-12-03T04:23:34.45 0.3 undecidable manual P 331 0.2752 147 -0.62 63
IV.GALF.HHZ. 2018-12-03T04:23:34.45 0.3 undecidable manual P 102 0.2041 155 -0.14 72
IV.RESU.HHZ. 2018-12-03T04:23:34.05 0.3 undecidable manual P 243 0.2284 152 -0.69 64
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:2.1 0.000246 0.5 AML other m 2018-12-03T04:23:43.50
IV.GALF.HHE. ML:2.2 0.0003315 0.72 AML other m 2018-12-03T04:23:43.54
IV.CSLB.HHN. ML:1.6 6.79E-5 0.26 AML other m 2018-12-03T04:23:43.49
IV.NOV.HHE. ML:2.3 0.000203 1.58 AML other m 2018-12-03T04:23:44.06
IV.CSLB.HHE. ML:1.6 7.15E-5 0.42 AML other m 2018-12-03T04:23:45.28
IV.MNO.SHE. ML:0 0.000202 0.24 AML other m 2018-12-03T04:23:46.41
IV.SSY.HHE. ML:2.8 0.000505 0.42 AML other m 2018-12-03T04:23:47.26
IV.HLNI.HHN. ML:2.6 0.000435 1.28 AML other m 2018-12-03T04:23:47.78
IV.MNO.SHN. ML:0 0.0002075 0.6 AML other m 2018-12-03T04:23:47.81
IV.HLNI.HHE. ML:2.6 0.000435 1.44 AML other m 2018-12-03T04:23:48.02
IV.PLLN.EHE. ML:1.9 0.000158 1.24 AML other m 2018-12-03T04:23:48.86
IV.PLLN.EHN. ML:2.2 0.0003085 0.42 AML other m 2018-12-03T04:23:48.50
IV.MUCR.HHN. ML:2.1 0.0001565 1.18 AML other m 2018-12-03T04:23:50.76
IV.MUCR.HHE. ML:2.2 0.000198 0.58 AML other m 2018-12-03T04:23:51.64
IV.IACL.HHN. ML:2.2 0.0001665 0.22 AML other m 2018-12-03T04:23:52.19
IV.HAGA.HHE. ML:2.3 0.0001875 0.32 AML other m 2018-12-03T04:23:52.25
IV.IACL.HHE. ML:2.2 0.00015 0.22 AML other m 2018-12-03T04:23:52.49
IV.IFIL.HHE. ML:3 0.000893 0.82 AML other m 2018-12-03T04:23:53.27
IV.IFIL.HHN. ML:2.6 0.000318 0.58 AML other m 2018-12-03T04:23:55.69
IV.CORL.HHN. ML:2.2 0.0001425 1.62 AML other m 2018-12-03T04:23:55.06
MN.CLTB.HHE. ML:2.2 0.0001175 0.44 AML other m 2018-12-03T04:23:56.07
IV.CORL.HHE. ML:2.4 0.0002055 0.92 AML other m 2018-12-03T04:23:56.37
IV.SSY.HHN. ML:3.2 0.001265 0.6 AML other m 2018-12-03T04:23:57.18
IV.NOV.HHN. ML:2.3 0.000211 0.42 AML other m 2018-12-03T04:23:57.47
IV.HAGA.HHN. ML:2.4 0.000209 0.42 AML other m 2018-12-03T04:24:00.86
MN.CLTB.HHN. ML:2.5 0.0002425 1.38 AML other m 2018-12-03T04:24:10.26
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