Earthquake with magnitude of ML 2.7 on date 17-12-2020 and time 09:09:03 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 17-12-2020 09:09:03 (UTC)
  • 17-12-2020 10:09:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.54, 15.484 at 277 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

An earthquake occurred to
72 Km W of Cosenza (67546 inhabitants)
95 Km NW of Lamezia Terme (70714 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 2019

Earthquakes since 1000 AD until 2019 *

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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2.7 2020-12-17
09:09:03
39.5397 15.4845 277 2021-02-26
14:56:13
Bollettino Sismico Italiano INGV 86011651
Reviewed
Rev100
ML 2.7 2020-12-17
09:09:02
39.5145 15.5702 290 2020-12-17
09:19:27
Sala Sismica INGV-Roma 85490681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-17 09:09:03 ± 0.41
Latitude 39.5397 ± 0.0234
Longitude 15.4845 ± 0.0466
Depth (km) 277 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86011651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3774
Semi-minor axis of confidence ellipse (meter) 2264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 3770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.65745
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 86011651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 17:25:41

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85490681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-17 09:19:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SACS.HHZ. 2020-12-17T09:11:17.33 3.0 undecidable manual Sn -8.58 0
ST.PANI.EHZ. 2020-12-17T09:11:14.31 3.0 undecidable manual Pn 5.03 0
AC.KBN.HHZ. 2020-12-17T09:11:12.41 3.0 undecidable manual Sg 20.549999 0
IV.PE3.EHZ. 2020-12-17T09:10:55.90 3.0 undecidable manual Pg 19.040001 0
IV.CSNT.HHZ. 2020-12-17T09:10:55.54 3.0 undecidable manual Pg 12.11 0
GU.CARD.HHZ. 2020-12-17T09:10:54.98 3.0 undecidable manual Pn 0.55 0
IV.CRE.HHZ. 2020-12-17T09:10:50.43 3.0 negative manual Pg 10.6 0
IV.FIR.HHZ. 2020-12-17T09:10:41.32 3.0 undecidable manual Pn -5.04 0
IV.SENA.HHZ. 2020-12-17T09:10:38.48 3.0 undecidable manual Pn -7.85 0
IV.FDMO.HHZ. 2020-12-17T09:10:38.13 3.0 negative manual Pg 11.89 0
IT.LRNO.HNZ. 2020-12-17T09:10:37.75 3.0 undecidable manual Sg 8.03 0
IV.GAVE.EHZ. 2020-12-17T09:10:30.11 3.0 negative manual Pg 5.81 0
IV.PTRJ.HNZ. 2020-12-17T09:10:29.66 3.0 undecidable manual Sg 2.81 0
IV.ISPIC.HNZ. 2020-12-17T09:10:22.30 3.0 negative manual Pg 4.55 0
IV.AIO.HHE. 2020-12-17T09:10:19.03 0.6 undecidable manual S 187 1.5801 146 1.64 19
IV.MILZ.HHN. 2020-12-17T09:10:14.28 0.6 undecidable manual S 189 1.2824 152 0.54 38
MN.CEL.HNZ. 2020-12-17T09:10:13.21 0.6 undecidable manual S 166 1.3175 151 -0.93 32
IV.PLAC.HHE. 2020-12-17T09:10:13.15 0.6 undecidable manual S 145 1.3175 151 -1 31
IV.MSRU.HHE. 2020-12-17T09:10:13.20 0.6 undecidable manual S 179 1.2752 152 -0.46 39
IV.PIPA.HHZ. 2020-12-17T09:10:12.31 0.6 undecidable manual S 93 1.0279 157 1.21 29
IV.SERS.HHZ. 2020-12-17T09:10:11.53 0.6 undecidable manual S 118 1.0585 156 0.14 43
MN.TIP.HHZ. 2020-12-17T09:10:11.35 0.6 undecidable manual S 110 1.0477 156 0.06 44
IT.LRNO.HNZ. 2020-12-17T09:10:10.71 3.0 positive manual Pg 9 0
IV.JOPP.HNN. 2020-12-17T09:10:09.84 0.3 undecidable manual S 161 0.983 158 -0.84 55
IV.TDS.HHZ. 2020-12-17T09:10:09.93 0.6 undecidable manual S 79 0.6682 164 1.7 23
IV.CELI.HHZ. 2020-12-17T09:10:08.31 1.0 undecidable manual S 100 0.8022 162 -0.86 19
IV.CET2.HHZ. 2020-12-17T09:10:06.93 0.6 undecidable manual S 92 0.3624 171 0.23 49
IV.SCTE.HHZ. 2020-12-17T09:09:52.28 3.0 positive manual Pn 2.48 0
IV.AIO.HHE. 2020-12-17T09:09:47.20 0.3 undecidable manual P 187 1.5801 146 0.96 42
IV.MSFR.HHZ. 2020-12-17T09:09:47.03 0.6 undecidable manual P 205 1.6575 145 0.18 34
IV.MSRU.HHE. 2020-12-17T09:09:44.19 1.0 undecidable manual P 179 1.2752 152 0.11 21
IV.MILZ.HHN. 2020-12-17T09:09:44.63 1.0 undecidable manual P 189 1.2824 152 0.49 19
IV.IVPL.HNE. 2020-12-17T09:09:44.49 0.3 undecidable manual P 199 1.2267 153 0.71 54
MN.CEL.HNZ. 2020-12-17T09:09:44.68 0.6 undecidable manual P 166 1.3175 151 0.31 40
IV.LADO.EHE. 2020-12-17T09:09:43.25 0.3 undecidable manual P 102 1.1826 154 -0.25 62
IV.PLAC.HHE. 2020-12-17T09:09:43.82 0.3 undecidable manual P 145 1.3175 151 -0.55 56
IV.SPS2.HHZ. 2020-12-17T09:09:42.00 0.6 undecidable manual P 110 0.7051 164 0.91 37
IV.CELI.HHZ. 2020-12-17T09:09:42.21 0.1 negative manual P 100 0.8022 162 0.72 79
IV.SERS.HHZ. 2020-12-17T09:09:42.72 0.1 negative manual P 118 1.0585 156 -0.06 89
IV.PIPA.HHZ. 2020-12-17T09:09:42.68 0.3 undecidable manual P 93 1.0279 157 0.07 67
MN.TIP.HHZ. 2020-12-17T09:09:42.75 0.1 negative manual P 110 1.0477 156 0.03 90
IV.TDS.HHZ. 2020-12-17T09:09:41.22 0.3 undecidable manual P 79 0.6682 164 0.27 70
IV.SCHR.EHZ. 2020-12-17T09:09:41.63 0.3 undecidable manual P 34 0.8004 162 0.14 70
IV.MCEL.HHZ. 2020-12-17T09:09:41.74 0.6 undecidable manual P 17 0.822 161 0.16 46
IV.CMPR.HHZ. 2020-12-17T09:09:41.22 0.1 undecidable manual P 350 0.7905 162 -0.22 91
IV.JOPP.HNN. 2020-12-17T09:09:41.78 0.1 undecidable manual P 161 0.983 158 -0.58 80
MN.CUC.HHE. 2020-12-17T09:09:40.04 0.3 undecidable manual P 29 0.5198 168 -0.42 69
IV.BULG.HHN. 2020-12-17T09:09:40.57 0.1 undecidable manual P 351 0.5441 167 0.04 100
IV.SIRI.HHZ. 2020-12-17T09:09:40.84 0.6 undecidable manual P 24 0.706 164 -0.26 46
IV.MGR.HHZ. 2020-12-17T09:09:40.40 0.3 undecidable manual P 5 0.5998 166 -0.31 70
IV.CET2.HHZ. 2020-12-17T09:09:39.75 0.1 undecidable manual P 92 0.3624 171 -0.32 98
IV.GRIS.HNE. 2020-12-17T09:09:39.59 0.1 undecidable manual P 55 0.3471 172 -0.45 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHN. ML:2.5 4.205E-5 0.94 AML other m 2020-12-17T09:09:43.06
IV.SIRI.HHE. ML:2.4 3.71E-5 0.28 AML other m 2020-12-17T09:09:43.48
IV.MCEL.HHE. ML:2.3 2.475E-5 0.76 AML other m 2020-12-17T09:09:43.53
IV.PIPA.HHE. ML:2.7 5.77E-5 1.32 AML other m 2020-12-17T09:09:44.30
IV.PIPA.HHN. ML:2.6 4.405E-5 0.6 AML other m 2020-12-17T09:09:44.43
IV.CET2.HHE. ML:2.7 6.93E-5 0.8 AML other m 2020-12-17T09:10:08.63
IV.CET2.HHN. ML:2.9 0.0001123 1.66 AML other m 2020-12-17T09:10:09.05
IV.CELI.HHN. ML:2.7 6.725E-5 0.46 AML other m 2020-12-17T09:10:11.57
IV.SPS2.HHN. ML:2.6 4.775E-5 1.16 AML other m 2020-12-17T09:10:11.37
IV.SERS.HHN. ML:2.9 9.41E-5 0.44 AML other m 2020-12-17T09:10:12.61
MN.TIP.HHN. ML:2.6 4.955E-5 0.58 AML other m 2020-12-17T09:10:12.23
IV.SPS2.HHE. ML:2.5 3.95E-5 0.3 AML other m 2020-12-17T09:10:12.75
IV.CELI.HHE. ML:2.7 6.335E-5 0.42 AML other m 2020-12-17T09:10:12.79
MN.TIP.HHE. ML:2.6 5.23E-5 0.52 AML other m 2020-12-17T09:10:12.60
IV.SERS.HHE. ML:2.8 7.165E-5 0.82 AML other m 2020-12-17T09:10:14.54
IV.MCEL.HHN. ML:2.6 4.825E-5 0.84 AML other m 2020-12-17T09:10:14.15
IV.SIRI.HNN. ML:3.3 0.000287 1.52 AML other m 2020-12-17T09:10:15.82
IV.SIRI.HNE. ML:3.4 0.0003055 1.48 AML other m 2020-12-17T09:10:15.81
IV.SOI.EHE. ML:2.7 5.345E-5 0.36 AML other m 2020-12-17T09:10:19.06
IV.SOI.EHN. ML:2.6 4.13E-5 1.36 AML other m 2020-12-17T09:10:19.99
IV.GAVE.EHN. ML:3.2 4.78E-5 0.24 AML other m 2020-12-17T09:10:36.13
IV.GAVE.EHE. ML:3.2 5.145E-5 1.82 AML other m 2020-12-17T09:10:36.96
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download