Earthquake with magnitude of ML 3.3 on date 11-12-2019 and time 15:29:55 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 3.3 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 11-12-2019 15:29:55 (UTC)
  • 11-12-2019 16:29:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.51, 15.12 at 335 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap *

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap *

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap *

This map shows the distribution of peak ground velocities expressed in cm/s.
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
Bulletin
Rev1000
ML 3.3 2019-12-11
15:29:55
39.51 15.12 335 2020-02-28
16:42:18
Bollettino Sismico Italiano INGV 75494971
Reviewed
Rev100
ML 3.4 2019-12-11
15:29:55
39.47 15.07 333 2019-12-11
15:44:54
Sala Sismica INGV-Roma 74556301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-11 15:29:55 ± 0.32
Latitude 39.51 ± 0.02
Longitude 15.12 ± 0.05
Depth (km) 335 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75494971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3900
Semi-minor axis of confidence ellipse (meter) 1919
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 3900
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 4.42916
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:3.3

Field Value
Value 3.3
Uncertainty 0.2
Num. used stations 41
Type of magnitude ML
Reference to an origin 75494971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-23 08:06:36

ML:3.4

Field Value
Value 3.4
Uncertainty 0.4
Num. used stations 47
Type of magnitude ML
Reference to an origin 74556301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-11 15:44:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2019-12-11T15:32:29.26 3.0 undecidable manual Sn -3.08 0
IV.FIR.HHZ. 2019-12-11T15:32:29.96 3.0 undecidable manual Sg 15.86 0
IV.NDIM.HNZ. 2019-12-11T15:32:28.85 3.0 undecidable manual Sn -9.99 0
IV.IMI.HHZ. 2019-12-11T15:32:02.45 3.0 undecidable manual Pg 16.879999 0
IV.COR1.EHZ. 2019-12-11T15:32:02.69 3.0 undecidable manual Sg 5.2 0
MN.TIR.HHZ. 2019-12-11T15:32:01.03 3.0 undecidable manual Sn -4.01 0
OX.CIMO.HHZ. 2019-12-11T15:32:00.03 3.0 undecidable manual Pg 11.46 0
IV.ZONE.HHZ. 2019-12-11T15:31:56.03 3.0 negative manual Pg 5.9 0
IV.SNTG.HHZ. 2019-12-11T15:31:52.90 3.0 undecidable manual Sg 3.76 0
IV.MILN.HNZ. 2019-12-11T15:31:44.96 3.0 undecidable manual Pn -6.67 0
IV.MDI.HHZ. 2019-12-11T15:31:40.88 3.0 positive manual Pn -9.99 0
IV.SOI.EHZ. 2019-12-11T15:31:19.66 0.6 undecidable manual S 153 1.6089 151 -0.37 36
CR.STON.BHZ. 2019-12-11T15:31:19.40 3.0 undecidable manual Pg 9.65 0
IV.MPNC.HHZ. 2019-12-11T15:31:18.16 0.6 undecidable manual S 172 1.3742 155 0.69 37
IV.PLAC.HHZ. 2019-12-11T15:31:17.52 1.0 undecidable manual S 136 1.4722 153 -0.98 15
IV.MSRU.HHE. 2019-12-11T15:31:17.10 0.6 undecidable manual S 166 1.2815 156 0.56 41
MN.TIP.HHZ. 2019-12-11T15:31:16.79 0.6 undecidable manual S 104 1.3067 156 0 46
MN.CEL.HHZ. 2019-12-11T15:31:16.96 0.6 undecidable manual S 154 1.3859 155 -0.62 38
IV.CELI.HHZ. 2019-12-11T15:31:16.17 0.6 undecidable manual S 95 1.0747 160 1.47 27
IV.JOPP.HHZ. 2019-12-11T15:31:14.04 0.6 undecidable manual S 147 1.0792 160 -0.7 40
IV.SPS2.HHE. 2019-12-11T15:31:14.29 0.6 undecidable manual S 103 0.9641 162 0.46 45
IV.PE3.EHZ. 2019-12-11T15:31:13.53 3.0 negative manual Pn -0.74 0
IV.CET2.HHE. 2019-12-11T15:31:12.23 0.6 undecidable manual S 88 0.6412 168 0.44 48
IV.CAR1.HHZ. 2019-12-11T15:31:12.63 0.3 undecidable manual S 107 0.8795 163 -0.59 66
MN.VSL.HHN. 2019-12-11T15:31:08.92 0.1 undecidable manual P 272 4.4292 123 -2.65 4
IV.HPAC.HHZ. 2019-12-11T15:30:54.47 0.3 undecidable manual P 181 2.8005 136 0.4 21
IV.ALJA.HHZ. 2019-12-11T15:30:48.70 0.3 undecidable manual P 212 2.0594 145 1.19 29
IV.HAGA.HHZ. 2019-12-11T15:30:48.18 0.6 undecidable manual P 179 2.224 143 -0.68 21
IV.HLNI.HHZ. 2019-12-11T15:30:48.30 0.1 undecidable manual P 185 2.1692 143 -0.1 52
IV.GIB.HHE. 2019-12-11T15:30:45.55 0.3 undecidable manual P 210 1.7429 149 0.43 50
IV.PLLN.EHN. 2019-12-11T15:30:45.07 0.3 undecidable manual P 207 1.6979 150 0.27 53
IV.NOV.HHZ. 2019-12-11T15:30:44.13 0.3 undecidable manual P 180 1.4812 153 0.76 51
IV.AIO.HHZ. 2019-12-11T15:30:44.07 0.1 undecidable manual P 177 1.5405 152 0.33 76
IV.CSLB.HHZ. 2019-12-11T15:30:44.97 0.3 undecidable manual P 208 1.778 149 -0.4 49
IV.VIVA.HHZ. 2019-12-11T15:30:43.74 3.0 positive manual Pn -5.73 0
IV.MUCR.HHE. 2019-12-11T15:30:43.51 0.1 undecidable manual P 188 1.4794 153 0.16 82
IV.SOI.EHZ. 2019-12-11T15:30:43.88 0.1 undecidable manual P 153 1.6089 151 -0.31 73
IV.LADO.EHZ. 2019-12-11T15:30:43.26 0.3 undecidable manual P 98 1.4515 154 0.08 63
IV.PLAC.HHZ. 2019-12-11T15:30:43.14 0.1 undecidable manual P 136 1.4722 153 -0.17 82
IV.IVPL.HNE. 2019-12-11T15:30:42.05 0.3 undecidable manual P 186 1.1385 159 0.62 61
MN.CEL.HHZ. 2019-12-11T15:30:42.08 0.1 undecidable manual P 154 1.3859 155 -0.7 73
MN.TIP.HHZ. 2019-12-11T15:30:42.64 0.1 undecidable manual P 104 1.3067 156 0.32 86
IV.MPNC.HHZ. 2019-12-11T15:30:42.55 0.1 undecidable manual P 172 1.3742 155 -0.17 86
IV.MSRU.HHE. 2019-12-11T15:30:41.84 0.1 undecidable manual P 166 1.2815 156 -0.34 85
IV.SCHR.EHN. 2019-12-11T15:30:41.08 0.3 undecidable manual P 46 1.0045 161 0.29 69
IV.TDS.HHZ. 2019-12-11T15:30:41.04 0.3 undecidable manual P 81 0.9479 162 0.5 67
IV.CELI.HHZ. 2019-12-11T15:30:41.86 0.1 undecidable manual P 95 1.0747 160 0.74 79
IV.SLCN.HNZ. 2019-12-11T15:30:40.35 0.6 undecidable manual P 24 0.9623 162 -0.25 47
IV.SPS2.HHE. 2019-12-11T15:30:40.83 0.1 undecidable manual P 103 0.9641 162 0.22 95
IV.CDRU.HHE. 2019-12-11T15:30:40.26 0.3 undecidable manual P 8 0.9884 161 -0.46 67
IV.JOPP.HHZ. 2019-12-11T15:30:40.64 0.1 undecidable manual P 147 1.0792 160 -0.5 86
IV.MCEL.HHN. 2019-12-11T15:30:40.87 0.3 undecidable manual P 32 0.9668 162 0.25 70
IV.BULG.HNE. 2019-12-11T15:30:39.14 0.3 undecidable manual P 19 0.6007 168 -0.18 78
IV.CMPR.HHZ. 2019-12-11T15:30:39.79 0.3 undecidable manual P 10 0.8193 164 -0.24 73
IV.CAR1.HHZ. 2019-12-11T15:30:39.76 0.3 undecidable manual P 107 0.8795 163 -0.5 68
IV.MGR.HNE. 2019-12-11T15:30:39.43 0.3 undecidable manual P 28 0.7087 166 -0.21 75
IV.CET2.HHE. 2019-12-11T15:30:39.12 0.3 undecidable manual P 88 0.6412 168 -0.31 75
IV.MMN.HHE. 2019-12-11T15:30:39.68 0.1 undecidable manual P 60 0.768 165 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TIP.HNN. ML:3.2 0.0001101376 0.7808 AML other m 2019-12-11T15:30:43.42
MN.TIP.HNE. ML:3.3 0.00013377795 0.4224 AML other m 2019-12-11T15:30:43.56
IV.GRI.EHN. ML:3.4 0.00019663955 0.448 AML other m 2019-12-11T15:30:44.44
IV.AIO.HHN. ML:3.5 0.00020246055 0.4608 AML other m 2019-12-11T15:30:46.64
IV.GRI.EHE. ML:3.4 0.00021553015 0.512 AML other m 2019-12-11T15:30:47.01
IV.AIO.HHE. ML:3.4 0.00015889295 1.5136 AML other m 2019-12-11T15:30:49.24
IV.TDS.HHN. ML:3 9.052035E-5 0.0544 AML other m 2019-12-11T15:30:53.40
IV.CSLB.HHE. ML:3 5.831544E-5 1.4976 AML other m 2019-12-11T15:30:59.84
IV.VIVA.HHE. ML:4.4 0.00089751525 0.064 AML other m 2019-12-11T15:31:04.05
IV.HAGA.HHE. ML:3.7 0.00025141375 0.9856 AML other m 2019-12-11T15:31:12.33
IV.CAR1.HHN. ML:3.4 0.00023290935 0.7552 AML other m 2019-12-11T15:31:13.52
IV.CAR1.HNN. ML:3.4 0.0002342176 0.4992 AML other m 2019-12-11T15:31:14.57
IV.CAR1.HNE. ML:3.5 0.0002601091 0.4864 AML other m 2019-12-11T15:31:14.34
IV.CAR1.HHE. ML:3.5 0.00025383695 0.4992 AML other m 2019-12-11T15:31:14.35
IV.JOPP.HHE. ML:3.2 0.00013894399 0.256 AML other m 2019-12-11T15:31:16.35
IV.TDS.HHE. ML:3.1 0.000102986395 1.0528 AML other m 2019-12-11T15:31:16.24
IV.JOPP.HHN. ML:3.2 0.000114387045 0.3328 AML other m 2019-12-11T15:31:16.57
IV.CELI.HHN. ML:3.8 0.000452492 0.5376 AML other m 2019-12-11T15:31:16.68
IV.CELI.HNN. ML:3.4 0.0001776714 0.512 AML other m 2019-12-11T15:31:16.43
IV.HPAC.HHN. ML:4.1 0.0004856646 1.4592 AML other m 2019-12-11T15:31:17.20
IV.SALB.HHE. ML:3.1 0.00010287785 1.5776 AML other m 2019-12-11T15:31:18.92
MN.TIP.HHE. ML:3.3 0.0001467502 0.6912 AML other m 2019-12-11T15:31:19.45
IV.PLAC.HHE. ML:3.3 0.000139082545 0.2688 AML other m 2019-12-11T15:31:19.30
MN.CEL.HNE. ML:3.4 0.0001693479 0.3456 AML other m 2019-12-11T15:31:19.86
IV.CELI.HNE. ML:3.3 0.0001758279 1.4752 AML other m 2019-12-11T15:31:20.76
IV.CELI.HHE. ML:3.7 0.00044240645 1.4752 AML other m 2019-12-11T15:31:20.76
IV.PLAC.HNN. ML:3.3 0.00013615001 0.384 AML other m 2019-12-11T15:31:20.58
IV.SALB.HHN. ML:3 7.2852455E-5 0.32 AML other m 2019-12-11T15:31:20.52
MN.CEL.HHE. ML:3.3 0.00015715715 0.4608 AML other m 2019-12-11T15:31:20.75
IV.LADO.EHN. ML:2.2 9.112902E-6 1.6928 AML other m 2019-12-11T15:31:20.14
IV.LADO.EHE. ML:2.3 1.490108E-5 0.3072 AML other m 2019-12-11T15:31:21.96
MN.CEL.HHN. ML:3.4 0.000165420465 1.4496 AML other m 2019-12-11T15:31:22.05
IV.PLAC.HHN. ML:3.3 0.000137087955 1.5008 AML other m 2019-12-11T15:31:23.08
IV.PLAC.HNE. ML:3.3 0.00013185152 1.5008 AML other m 2019-12-11T15:31:23.08
IV.HLNI.HHN. ML:3.4 0.000119494585 0.0992 AML other m 2019-12-11T15:31:23.16
MN.CEL.HNN. ML:3.4 0.00016360715 1.3088 AML other m 2019-12-11T15:31:24.13
IV.SOI.EHE. ML:3.3 0.00012619325 1.4368 AML other m 2019-12-11T15:31:24.23
IV.VIVA.HHN. ML:4.4 0.0010913095 0.064 AML other m 2019-12-11T15:31:26.82
IV.ALJA.HHN. ML:3.4 0.000140964685 1.0528 AML other m 2019-12-11T15:31:28.44
IV.HAGA.HHN. ML:3.7 0.00027952945 1.0624 AML other m 2019-12-11T15:31:29.98
IV.MTGR.HHE. ML:6.7 0.25198534 1.3312 AML other m 2019-12-11T15:31:34.13
IV.MTGR.HHN. ML:6.4 0.10649362 1.3568 AML other m 2019-12-11T15:31:34.12
IV.CSLB.HHN. ML:3.1 8.3069315E-5 0.528 AML other m 2019-12-11T15:31:35.81
MN.TIP.HHN. ML:3.1 8.7966035E-5 0.0032 AML other m 2019-12-11T15:31:36.38
IV.HLNI.HHE. ML:3.5 0.00015827465 0.2592 AML other m 2019-12-11T15:31:41.77
IV.HPAC.HHE. ML:4 0.0003705697 0.6816 AML other m 2019-12-11T15:31:46.08
IV.SOI.EHN. ML:3.7 0.000369449845 0.3808 AML other m 2019-12-11T15:31:47.30
IV.PE3.EHN. ML:0 0.0002098914 0.784 AML other m 2019-12-11T15:32:13.45
IV.PE3.EHE. ML:0 0.0002324092 0.96 AML other m 2019-12-11T15:32:18.63
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