INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.0 on date 06-12-2018 and time 15:07:33 (Italy) in region 1 km E Vallelonga (VV)

A magnitude ML 2.0 earthquake occured in region: 1 km E Vallelonga (VV), on

  • 06-12-2018 14:07:33 (UTC)
  • 06-12-2018 15:07:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.65, 16.31 at 9 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
Vallelonga VV 1 706 706
San Nicola da Crissa VV 3 1335 2041
Simbario VV 5 966 3007
Capistrano VV 5 1042 4049
Torre di Ruggiero CZ 5 1033 5082
Spadola VV 6 825 5907
Vazzano VV 6 1067 6974
Brognaturo VV 6 735 7709
Pizzoni VV 6 1143 8852
Cardinale CZ 7 2188 11040
Filogaso VV 8 1417 12457
Monterosso Calabro VV 8 1729 14186
Serra San Bruno VV 9 6734 20920
Soriano Calabro VV 9 2421 23341
Sorianello VV 9 1176 24517
Chiaravalle Centrale CZ 10 5759 30276
Gerocarne VV 11 2248 32524
San Vito sullo Ionio CZ 11 1811 34335
Polia VV 11 1023 35358
Argusto CZ 11 522 35880
Cenadi CZ 11 563 36443
Maierato VV 12 2188 38631
Olivadi CZ 13 529 39160
Arena VV 13 1456 40616
Gagliato CZ 14 505 41121
Centrache CZ 14 401 41522
Dasà VV 14 1208 42730
Francavilla Angitola VV 15 1939 44669
Acquaro VV 15 2484 47153
Satriano CZ 15 3448 50601
Filadelfia VV 15 5384 55985
Mongiana VV 15 740 56725
Petrizzi CZ 15 1131 57856
Davoli CZ 15 5607 63463
San Sostene CZ 15 1370 64833
Sant'Onofrio VV 16 3067 67900
Pizzo VV 16 9278 77178
Stefanaconi VV 16 2494 79672
Palermiti CZ 16 1213 80885
Montepaone CZ 18 5282 86167
San Gregorio d'Ippona VV 18 2527 88694
Fabrizia VV 19 2195 90889
Vibo Valentia VV 19 33941 124830
Francica VV 19 1651 126481
Isca sullo Ionio CZ 19 1633 128114
Sant'Andrea Apostolo dello Ionio CZ 19 1937 130051
Vallefiorita CZ 19 1771 131822
Dinami VV 20 2168 133990
Nardodipace VV 20 1305 135295
Gasperina CZ 20 2160 137455
Amaroni CZ 20 1855 139310
Curinga CZ 20 6779 146089

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km S of Lamezia Terme (70714 inhabitants)
38 Km SW of Catanzaro (90612 inhabitants)
72 Km S of Cosenza (67546 inhabitants)
83 Km NE of Messina (238439 inhabitants)
84 Km NE of Reggio di Calabria (183035 inhabitants)
85 Km SW of Crotone (62178 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 2.0 2018-12-06
14:07:33
38.65 16.31 9 2018-12-06
14:17:56
Sala Sismica INGV-Roma 63710691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-06 14:07:33 ± 0.06
Latitude 38.65 ± 0.00
Longitude 16.31 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63710691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 659
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 660
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.92001
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 63710691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-06 14:17:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CET2.HHZ. 2018-12-06T14:08:03.19 0.3 undecidable manual S 343 0.92 50 -0.21 63
MN.TIP.HHZ. 2018-12-06T14:07:55.04 0.6 undecidable manual S 33 0.6313 50 0.19 45
IV.GMB.BHZ. 2018-12-06T14:07:54.44 0.6 undecidable manual S 218 0.6133 50 0.13 46
IV.CAR1.HHZ. 2018-12-06T14:07:54.20 0.3 undecidable manual S 353 0.607 50 0.07 69
IV.ISTR.HHZ. 2018-12-06T14:07:53.14 3.0 undecidable manual S 0
IV.IST3.HHZ. 2018-12-06T14:07:52.11 3.0 undecidable manual S 0
MN.CEL.HHZ. 2018-12-06T14:07:51.46 0.3 undecidable manual S 220 0.5099 50 0.23 69
IV.MPNC.HHZ. 2018-12-06T14:07:50.47 0.3 undecidable manual P 236 0.9047 50 0.07 65
IV.CET2.HHZ. 2018-12-06T14:07:50.70 0.3 undecidable manual P 343 0.92 50 0.04 65
IV.GMB.BHZ. 2018-12-06T14:07:45.30 0.1 undecidable manual P 218 0.6133 50 -0.11 92
IV.JOPP.HHZ. 2018-12-06T14:07:45.84 0.6 undecidable manual S 263 0.3363 50 -0.26 47
MN.TIP.HHZ. 2018-12-06T14:07:45.40 0.1 undecidable manual P 33 0.6313 50 -0.33 87
IV.CAR1.HHZ. 2018-12-06T14:07:45.56 0.1 undecidable manual P 353 0.607 50 0.25 89
IV.IST3.HHZ. 2018-12-06T14:07:44.26 3.0 undecidable manual P 0
MN.CEL.HHZ. 2018-12-06T14:07:43.60 0.1 undecidable manual P 220 0.5099 50 -0.03 95
IV.PLAC.HHZ. 2018-12-06T14:07:42.32 0.3 undecidable manual S 154 0.2239 110 -0.14 74
IV.GRI.EHZ. 2018-12-06T14:07:41.15 0.3 undecidable manual S 26 0.1907 114 -0.11 75
IV.ISTR.HHZ. 2018-12-06T14:07:41.91 3.0 undecidable manual P 0
IV.JOPP.HHZ. 2018-12-06T14:07:40.61 0.1 undecidable manual P 263 0.3363 50 -0.06 98
IV.GRI.EHZ. 2018-12-06T14:07:38.09 0.1 undecidable manual P 26 0.1907 114 0.21 98
IV.PLAC.HHZ. 2018-12-06T14:07:38.64 0.1 undecidable manual P 154 0.2239 110 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HNE. ML:2.2 0.000994 0.64 AML other m 2018-12-06T14:07:42.83
IV.PLAC.HHN. ML:2.2 0.0010145 0.62 AML other m 2018-12-06T14:07:42.82
IV.GRI.EHN. ML:2.3 0.001345 0.48 AML other m 2018-12-06T14:07:42.55
IV.GRI.EHE. ML:2.3 0.00149 0.42 AML other m 2018-12-06T14:07:42.76
IV.PLAC.HNN. ML:2.1 0.000762 0.36 AML other m 2018-12-06T14:07:43.53
IV.PLAC.HHE. ML:2.1 0.000764 0.38 AML other m 2018-12-06T14:07:43.52
IV.JOPP.HHE. ML:1.8 0.000215 1.12 AML other m 2018-12-06T14:07:45.36
IV.JOPP.HHN. ML:1.8 0.0002165 0.56 AML other m 2018-12-06T14:07:47.46
MN.CEL.HNE. ML:1.9 0.0001725 1.56 AML other m 2018-12-06T14:07:52.95
MN.CEL.HHE. ML:1.9 0.000196 1.56 AML other m 2018-12-06T14:07:52.95
MN.CEL.HNN. ML:1.8 0.0001325 0.7 AML other m 2018-12-06T14:07:53.03
MN.CEL.HHN. ML:1.8 0.000139 1.56 AML other m 2018-12-06T14:07:53.03
IV.GMB.BHE. ML:2.6 0.000738 0.44 AML other m 2018-12-06T14:07:55.47
IV.GMB.BHN. ML:2.6 0.000755 0.16 AML other m 2018-12-06T14:07:56.03
IV.CAR1.HHN. ML:2.1 0.000206 0.4 AML other m 2018-12-06T14:07:56.31
MN.TIP.HHN. ML:1.5 4.96E-5 0.4 AML other m 2018-12-06T14:07:56.72
MN.TIP.HHE. ML:1.3 3.48E-5 1.54 AML other m 2018-12-06T14:07:57.06
IV.CAR1.HHE. ML:2 0.000181 0.36 AML other m 2018-12-06T14:07:57.40
IV.CET2.HHE. ML:1.9 7.47E-5 0.2 AML other m 2018-12-06T14:08:04.63
IV.MPNC.HHE. ML:2 9.885E-5 0.88 AML other m 2018-12-06T14:08:05.06
IV.MPNC.HHN. ML:2.2 0.0001385 1.1 AML other m 2018-12-06T14:08:07.56
IV.CET2.HHN. ML:2.1 0.0001278 1.16 AML other m 2018-12-06T14:08:07.10
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