INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.1 on date 12-11-2017 and time 03:24:52 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 12-11-2017 02:24:52 (UTC)
  • 12-11-2017 03:24:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.94, 15.58 at 183 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
65 Km W of Lamezia Terme (70714 inhabitants)
71 Km SW of Cosenza (67546 inhabitants)
82 Km N of Messina (238439 inhabitants)
88 Km W of Catanzaro (90612 inhabitants)
92 Km N of Reggio di Calabria (183035 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.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006 *

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. 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 2.1 2017-11-12
02:24:52
38.94 15.58 183 2018-09-04
09:09:18
Bollettino Sismico Italiano INGV 56484111
Rev 100 ML 2.4 2017-11-12
02:24:52
38.93 15.57 184 2017-11-12
02:31:46
Sala Sismica INGV-Roma 51799271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-12 02:24:52 ± 0.18
Latitude 38.94 ± 0.01
Longitude 15.58 ± 0.03
Depth (km) 183 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56484111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2639
Semi-minor axis of confidence ellipse (meter) 521
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) 2640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.11336
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 51799271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-11-12 02:31:46

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 56484111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-04 17:19:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2017-11-12T02:26:58.24 3.0 undecidable manual Sn -5.99 0
IV.LMD.HHZ. 2017-11-12T02:26:46.35 3.0 undecidable manual Pg 21.110001 0
IV.CPGN.EHZ. 2017-11-12T02:26:23.97 3.0 undecidable manual Pn 4.99 0
IV.MA9.HHZ. 2017-11-12T02:26:04.54 3.0 undecidable manual Pg 10.04 0
IV.PIPA.HHZ. 2017-11-12T02:25:43.77 0.6 undecidable manual S 60 1.1062 144 0.07 43
IV.SPS2.HHZ. 2017-11-12T02:25:38.89 0.3 undecidable manual S 59 0.6907 156 0.17 69
IV.MSRU.HHE. 2017-11-12T02:25:38.78 1.0 undecidable manual S 185 0.6727 157 0.22 23
IV.CET2.HHZ. 2017-11-12T02:25:38.68 0.6 undecidable manual S 26 0.6619 157 0.23 46
IV.CAR1.HHZ. 2017-11-12T02:25:37.44 0.6 undecidable manual S 57 0.5864 159 -0.34 45
IV.JOPP.HHZ. 2017-11-12T02:25:36.36 0.6 undecidable manual S 144 0.4074 165 -0.12 49
IV.SALB.HHZ. 2017-11-12T02:25:22.71 0.1 undecidable manual P 32 1.1134 144 0.4 80
IV.PIPA.HHZ. 2017-11-12T02:25:22.32 0.1 undecidable manual P 60 1.1062 144 0.07 86
IV.SOI.EHN. 2017-11-12T02:25:21.24 0.1 undecidable manual P 156 0.9389 149 0.26 85
MN.CUC.HHZ. 2017-11-12T02:25:21.82 0.1 undecidable manual P 10 1.0738 145 -0.18 85
IV.PLAC.HHE. 2017-11-12T02:25:20.12 0.1 undecidable manual P 126 0.8301 152 -0.11 90
MN.TIP.HHN. 2017-11-12T02:25:20.98 0.1 undecidable manual P 75 0.9497 148 -0.07 88
IV.MSRU.HHE. 2017-11-12T02:25:19.29 0.1 undecidable manual P 185 0.6727 157 0 95
IV.CET2.HHZ. 2017-11-12T02:25:19.22 0.1 negative manual P 26 0.6619 157 -0.01 96
IV.SPS2.HHZ. 2017-11-12T02:25:19.28 0.1 undecidable manual P 59 0.6907 156 -0.1 93
IV.CAR1.HHZ. 2017-11-12T02:25:18.60 0.1 negative manual P 57 0.5864 159 -0.24 93
IV.JOPP.HHZ. 2017-11-12T02:25:18.04 0.1 undecidable manual P 144 0.4074 165 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:1.9 2.505675E-5 0.1392 AML other m 2017-11-12T02:25:37.69
IV.JOPP.HHE. ML:1.9 2.384506E-5 0.1792 AML other m 2017-11-12T02:25:39.13
IV.CAR1.HHN. ML:2.2 4.8117356E-5 0.32 AML other m 2017-11-12T02:25:41.85
IV.CAR1.HNN. ML:2.5 0.000108485515 0.4096 AML other m 2017-11-12T02:25:38.14
IV.CAR1.HHE. ML:2.3 5.9092435E-5 0.3808 AML other m 2017-11-12T02:25:38.21
IV.CAR1.HNE. ML:2.4 8.456279E-5 0 AML other m 2017-11-12T02:25:38.21
IV.CET2.HHN. ML:2.3 6.41892475E-5 0.1792 AML other m 2017-11-12T02:25:39.04
IV.CET2.HHE. ML:2.1 3.489073E-5 0.1808 AML other m 2017-11-12T02:25:39.47
IV.SPS2.HHN. ML:1.2 3.51044955E-6 0.3808 AML other m 2017-11-12T02:25:39.20
IV.SPS2.HHE. ML:2 2.768354E-5 0.36 AML other m 2017-11-12T02:25:39.82
MN.CUC.HNN. ML:2.4 6.3455555E-5 0.9408 AML other m 2017-11-12T02:25:45.26
IV.PIPA.HNE. ML:2.3 5.1232971E-5 0 AML other m 2017-11-12T02:25:45.41
IV.PIPA.HNN. ML:2.9 0.00021452385 0.7408 AML other m 2017-11-12T02:25:45.17
IV.PIPA.HHN. ML:1.6 9.049035E-6 0 AML other m 2017-11-12T02:25:45.04
IV.PIPA.HHE. ML:1.8 1.49492595E-5 0.2208 AML other m 2017-11-12T02:25:45.07
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