Earthquake with magnitude of ML 1.7 on date 21-10-2019 and time 20:48:13 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 21-10-2019 20:48:13 (UTC)
  • 21-10-2019 22:48:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.57, 15.52 at 154 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Messina (238439 inhabitants)
53 Km N of Reggio di Calabria (183035 inhabitants)
82 Km SW of Lamezia Terme (70714 inhabitants)
Recent and historical Seismicity
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 100 ML 1.7 2019-10-21
20:48:13
38.57 15.52 154 2019-10-21
21:00:51
Sala Sismica INGV-Roma 73380261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 20:48:13 ± 0.35
Latitude 38.57 ± 0.01
Longitude 15.52 ± 0.04
Depth (km) 154 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73380261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2810
Semi-minor axis of confidence ellipse (meter) 1434
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 2810
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 24
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) 1.44971
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73380261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 21:00:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.SATI.HHZ. 2019-10-21T20:50:22.97 3.0 undecidable manual Pn -6 0
CR.ZAG.BHZ. 2019-10-21T20:50:15.74 3.0 undecidable manual Pg 13.99 0
CR.STON.BHZ. 2019-10-21T20:50:14.30 3.0 undecidable manual Sn -1.86 0
IV.VIVA.HHZ. 2019-10-21T20:50:07.42 3.0 undecidable manual Sg 12.03 0
IV.NDIM.HHZ. 2019-10-21T20:50:04.41 3.0 positive manual Pn 3.75 0
MN.KEK.HHZ. 2019-10-21T20:49:52.03 3.0 undecidable manual Sn -2.38 0
IV.CGL.BHZ. 2019-10-21T20:49:37.56 3.0 undecidable manual Pg 6.44 0
IV.CPGN.EHZ. 2019-10-21T20:49:36.72 3.0 undecidable manual Pn -4.14 0
AC.VLO.HHZ. 2019-10-21T20:49:29.53 3.0 positive manual Pg 15.27 0
AC.KBN.HHZ. 2019-10-21T20:49:28.81 3.0 negative manual Pn 1.32 0
IV.SCIAC.HHZ. 2019-10-21T20:49:22.60 3.0 undecidable manual Sg -0.16 0
IT.TRN1.HGZ. 2019-10-21T20:49:22.92 3.0 negative manual Pn -1.35 0
IV.RMP.HHZ. 2019-10-21T20:49:18.87 3.0 negative manual Pg 3.53 0
IV.MTMR.EHZ. 2019-10-21T20:49:13.01 3.0 undecidable manual Sn -7.33 0
IV.VVLD.HHZ. 2019-10-21T20:49:08.56 3.0 undecidable manual Pn -2.72 0
IV.SALB.HHE. 2019-10-21T20:49:06.34 0.6 undecidable manual S 26 1.4497 131 0.73 34
IV.CELI.HHE. 2019-10-21T20:49:01.17 0.6 undecidable manual S 43 1.1286 138 1.05 32
IV.GRIS.EHE. 2019-10-21T20:49:01.56 0.6 undecidable manual S 12 1.1934 137 0.39 41
IV.CET2.HHZ. 2019-10-21T20:48:57.55 0.6 undecidable manual S 19 1.0117 142 -0.76 38
IV.CAR1.HHZ. 2019-10-21T20:48:55.88 0.6 undecidable manual S 38 0.8651 146 -0.36 45
IV.PLAC.HHZ. 2019-10-21T20:48:54.95 0.6 undecidable manual S 100 0.7276 150 0.44 45
IV.SOI.EHE. 2019-10-21T20:48:53.73 0.6 undecidable manual S 140 0.652 153 0.07 50
MN.CEL.HHE. 2019-10-21T20:48:51.57 0.6 undecidable manual S 137 0.429 162 -0.02 53
IV.MSRU.HHZ. 2019-10-21T20:48:50.47 0.6 undecidable manual S 182 0.3103 167 -0.35 51
GE.MATE.HHZ. 2019-10-21T20:48:47.42 3.0 undecidable manual Pn -6.62 0
IV.SALB.HHE. 2019-10-21T20:48:44.40 0.3 undecidable manual P 26 1.4497 131 0.6 53
IV.LADO.EHE. 2019-10-21T20:48:42.38 0.3 undecidable manual P 58 1.3373 133 -0.25 62
IV.GRIS.EHE. 2019-10-21T20:48:41.01 0.3 undecidable manual P 12 1.1934 137 -0.22 65
IV.CELI.HHE. 2019-10-21T20:48:40.93 0.1 undecidable manual P 43 1.1286 138 0.31 86
IV.CET2.HHZ. 2019-10-21T20:48:39.37 0.1 undecidable manual P 19 1.0117 142 -0.21 90
IV.PLAC.HHZ. 2019-10-21T20:48:37.29 0.1 negative manual P 100 0.7276 150 -0.1 98
IV.CAR1.HHZ. 2019-10-21T20:48:37.88 0.1 undecidable manual P 38 0.8651 146 -0.5 88
IV.AIO.HHE. 2019-10-21T20:48:37.43 0.3 undecidable manual P 201 0.6439 153 0.59 67
IV.NOV.HHE. 2019-10-21T20:48:37.28 0.1 undecidable manual P 209 0.6241 154 0.56 90
IV.MTTG.HHZ. 2019-10-21T20:48:36.58 0.3 undecidable manual P 166 0.5882 155 0.07 76
IV.IVPL.HHE. 2019-10-21T20:48:36.01 0.3 undecidable manual P 245 0.4676 160 0.13 77
IV.FERC.HNE. 2019-10-21T20:48:36.07 0.3 undecidable manual P 104 0.4901 159 0.09 78
IV.SOI.EHE. 2019-10-21T20:48:36.69 0.1 undecidable manual P 140 0.652 153 -0.2 98
MN.CEL.HHE. 2019-10-21T20:48:35.39 0.1 undecidable manual P 137 0.429 162 -0.31 100
IV.MSRU.HHZ. 2019-10-21T20:48:34.66 0.1 undecidable manual P 182 0.3103 167 -0.6 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHN. ML:1.8 2.62E-5 0.5 AML other m 2019-10-21T20:48:56.72
IV.MSRU.HHE. ML:1.7 2.3713785E-5 0.32 AML other m 2019-10-21T20:48:51.72
IV.MSRU.HHN. ML:1.7 2.282013E-5 0.384 AML other m 2019-10-21T20:48:51.32
IV.PLAC.HHE. ML:1.1 6.4665753E-6 0.7424 AML other m 2019-10-21T20:48:56.32
IV.CAR1.HHE. ML:1.7 1.9917835E-5 0.3584 AML other m 2019-10-21T20:49:00.96
IV.CAR1.HHN. ML:1.6 1.48042E-5 0.3584 AML other m 2019-10-21T20:48:58.27
IV.CET2.HHE. ML:1.7 1.491312E-5 0.2432 AML other m 2019-10-21T20:48:59.44
IV.CET2.HHN. ML:1.8 2.1439015E-5 0.1792 AML other m 2019-10-21T20:48:58.85
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download