INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.6 on date 04-12-2018 and time 00:38:37 (Italy) in region 3 km SW Tortorici (ME)

A magnitude ML 2.6 earthquake occured in region: 3 km SW Tortorici (ME), on

  • 03-12-2018 23:38:37 (UTC)
  • 04-12-2018 00:38:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.01, 14.8 at 10 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
Tortorici ME 3 6435 6435
Galati Mamertino ME 4 2627 9062
Longi ME 4 1473 10535
San Salvatore di Fitalia ME 7 1319 11854
Ucria ME 8 1058 12912
Frazzanò ME 8 711 13623
Castell'Umberto ME 8 3128 16751
Alcara li Fusi ME 9 1980 18731
Mirto ME 9 974 19705
Sinagra ME 9 2705 22410
Floresta ME 10 485 22895
Raccuja ME 11 1041 23936
San Marco d'Alunzio ME 11 1996 25932
Ficarra ME 11 1469 27401
Militello Rosmarino ME 11 1324 28725
Naso ME 12 3813 32538
Capri Leone ME 13 4515 37053
Sant'Angelo di Brolo ME 14 3090 40143
Torrenova ME 14 4386 44529
San Piero Patti ME 15 2915 47444
Sant'Agata di Militello ME 16 12624 60068
Brolo ME 17 5783 65851
Maniace CT 17 3765 69616
Librizzi ME 17 1660 71276
Capo d'Orlando ME 17 13254 84530
San Fratello ME 18 3707 88237
Piraino ME 18 3962 92199
Santa Domenica Vittoria ME 18 980 93179
Montagnareale ME 19 1615 94794
Montalbano Elicona ME 19 2287 97081
Acquedolci ME 19 5744 102825
Randazzo CT 20 10900 113725
Gioiosa Marea ME 20 7074 120799
Cesarò ME 20 2439 123238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NW of Acireale (52622 inhabitants)
62 Km NW of Catania (314555 inhabitants)
69 Km W of Messina (238439 inhabitants)
75 Km W of Reggio di Calabria (183035 inhabitants)
87 Km NE of Caltanissetta (63360 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

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
Rev 100 ML 2.6 2018-12-03
23:38:37
38.01 14.8 10 2018-12-03
23:52:28
Sala Sismica INGV-Roma 63626121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 23:38:37 ± 0.09
Latitude 38.01 ± 0.01
Longitude 14.80 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63626121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 758
Semi-minor axis of confidence ellipse (meter) 447
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61154
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 63626121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 23:52:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2018-12-03T23:39:06.42 3.0 undecidable manual P -0.15 0
IV.JOPP.HHZ. 2018-12-03T23:38:58.32 3.0 negative manual P 0.31 0
IV.SSY.HHZ. 2018-12-03T23:38:55.76 3.0 positive manual P 0.28 0
IV.IVPL.HHZ. 2018-12-03T23:38:53.31 1.0 undecidable manual S 21 0.3912 50 1.03 17
IV.AGST.EHZ. 2018-12-03T23:38:53.97 3.0 negative manual P -0.48 0
IV.GALF.HHZ. 2018-12-03T23:38:51.85 1.0 undecidable manual S 211 0.3525 50 0.73 20
IV.MSRU.HHZ. 2018-12-03T23:38:50.13 0.1 undecidable manual P 65 0.6115 50 0.14 88
IV.AIO.HHZ. 2018-12-03T23:38:50.68 0.3 undecidable manual S 97 0.3444 50 -0.2 69
IV.CSLB.HHZ. 2018-12-03T23:38:49.18 0.3 undecidable manual P 263 0.5891 50 -0.42 62
IV.NOV.HHZ. 2018-12-03T23:38:48.22 0.3 undecidable manual S 86 0.2662 50 -0.36 67
IV.PLLN.EHZ. 2018-12-03T23:38:48.44 0.3 undecidable manual P 268 0.5171 50 0.06 68
IV.ILLI.HHZ. 2018-12-03T23:38:48.03 1.0 undecidable manual P 15 0.4497 50 0.81 18
IV.EMSG.HHZ. 2018-12-03T23:38:47.90 0.6 undecidable manual S 148 0.2248 111 0.66 41
IV.IVPL.HHZ. 2018-12-03T23:38:46.59 0.1 undecidable manual P 21 0.3912 50 0.37 87
IV.ESLN.HHZ. 2018-12-03T23:38:46.22 1.0 undecidable manual P 156 0.3462 50 0.76 19
IV.EPZF.HHZ. 2018-12-03T23:38:46.22 1.0 undecidable manual S 166 0.1925 115 0.1 24
IV.AIO.HHZ. 2018-12-03T23:38:45.12 0.1 negative manual P 97 0.3444 50 -0.3 90
IV.GALF.HHZ. 2018-12-03T23:38:45.55 0.1 undecidable manual P 211 0.3525 50 -0.01 95
IV.EMSG.HHZ. 2018-12-03T23:38:43.57 0.1 positive manual P 148 0.2248 111 0.26 92
IV.MNO.SHZ. 2018-12-03T23:38:43.36 0.3 undecidable manual S 226 0.1151 128 -0.17 72
IV.NOV.HHZ. 2018-12-03T23:38:43.73 0.1 undecidable manual P 86 0.2662 50 -0.36 90
IV.MUCR.HHZ. 2018-12-03T23:38:42.12 0.1 undecidable manual S 62 0.0665 143 -0.09 99
IV.EPZF.HHZ. 2018-12-03T23:38:42.63 0.1 positive manual P 166 0.1925 115 -0.03 98
IV.MNO.SHZ. 2018-12-03T23:38:40.92 0.1 undecidable manual P 226 0.1151 128 -0.25 95
IV.MUCR.HHZ. 2018-12-03T23:38:40.43 0.1 undecidable manual P 62 0.0665 143 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.7 0.003610694 0.3584 AML other m 2018-12-03T23:38:50.78
IV.EPZF.HHN. ML:3.1 0.009772391 0.4608 AML other m 2018-12-03T23:38:50.10
IV.EMSG.HHE. ML:3 0.00578846 0.3072 AML other m 2018-12-03T23:38:50.29
IV.EMSG.HHN. ML:2.9 0.0044149045 0.5504 AML other m 2018-12-03T23:38:55.54
IV.NOV.HHN. ML:2.8 0.00323054 0.32 AML other m 2018-12-03T23:38:50.25
IV.NOV.HHE. ML:2.9 0.0038694315 0.4736 AML other m 2018-12-03T23:38:53.23
IV.AIO.HHE. ML:2.5 0.0010719184 0.3328 AML other m 2018-12-03T23:38:51.02
IV.AIO.HHN. ML:2.5 0.0010822767 0.2816 AML other m 2018-12-03T23:38:55.17
IV.GALF.HNE. ML:2 0.00039613385 0.6272 AML other m 2018-12-03T23:38:54.71
IV.GALF.HHE. ML:2.5 0.00122886565 0.6272 AML other m 2018-12-03T23:38:54.71
IV.GALF.HNN. ML:2 0.00038508015 0.5376 AML other m 2018-12-03T23:39:01.26
IV.GALF.HHN. ML:2.5 0.0011503409 0.5248 AML other m 2018-12-03T23:39:01.25
IV.ESLN.HHN. ML:2.6 0.0014794625 0.4352 AML other m 2018-12-03T23:39:00.79
IV.ESLN.HHE. ML:2.7 0.0017537025 0.7552 AML other m 2018-12-03T23:39:02.14
IV.IVPL.HHN. ML:2.6 0.0013684805 0.2304 AML other m 2018-12-03T23:38:58.20
IV.IVPL.HHE. ML:2.8 0.001914779 0.4352 AML other m 2018-12-03T23:38:59.50
IV.PLLN.EHN. ML:2.7 0.0010803015 0.576 AML other m 2018-12-03T23:39:04.99
IV.PLLN.EHE. ML:2.6 0.00082302505 0.4608 AML other m 2018-12-03T23:39:04.10
IV.CSLB.HHN. ML:1.9 0.0001585468 0.4224 AML other m 2018-12-03T23:39:04.76
IV.CSLB.HHE. ML:1.9 0.0001445577 0.4224 AML other m 2018-12-03T23:39:04.40
IV.MSRU.HHN. ML:2.5 0.00051872075 0.4096 AML other m 2018-12-03T23:39:02.40
IV.MSRU.HHE. ML:2.4 0.0004844837 0.32 AML other m 2018-12-03T23:39:01.89
IV.AGST.EHE. ML:2.4 0.0003137848 0.4608 AML other m 2018-12-03T23:39:07.48
IV.AGST.EHN. ML:2.4 0.00031762495 0.64 AML other m 2018-12-03T23:39:07.83
IV.SSY.HHE. ML:2.8 0.00068465055 0.4992 AML other m 2018-12-03T23:39:12.43
IV.SSY.HHN. ML:3 0.001130531 0.32 AML other m 2018-12-03T23:39:15.32
IV.JOPP.HHE. ML:2.1 9.498042E-5 0.4352 AML other m 2018-12-03T23:39:15.06
IV.JOPP.HHN. ML:2.1 0.000102957375 0.4992 AML other m 2018-12-03T23:39:15.27
IV.CAR1.HHE. ML:2.5 0.00010249784 0.9344 AML other m 2018-12-03T23:39:37.77
IV.CAR1.HNE. ML:2.8 0.0001937403 1.152 AML other m 2018-12-03T23:39:56.35
IV.CAR1.HHN. ML:2.5 0.000102500605 0.5632 AML other m 2018-12-03T23:39:40.32
IV.CAR1.HNN. ML:3 0.00036692615 0.64 AML other m 2018-12-03T23:39:20.90
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://cnt.rm.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