Earthquake with magnitude of ML 1.4 on date 29-09-2021 and time 21:20:32 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.4 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 29-09-2021 19:20:32 (UTC)
  • 29-09-2021 21:20:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.905, 15.544 at 83 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
68 Km W of Lamezia Terme (70714 inhabitants)
75 Km SW of Cosenza (67546 inhabitants)
79 Km N of Messina (238439 inhabitants)
89 Km N of Reggio di Calabria (183035 inhabitants)
91 Km W of Catanzaro (90612 inhabitants)
Recent and historical seismicity
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
Reviewed
Rev100
ML 1.4 2021-09-29
19:20:32
38.9048 15.5442 83 2021-09-29
19:32:57
Sala Sismica INGV-Roma 96041911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-29 19:20:32 ± 0.31
Latitude 38.9048 ± 0.0090
Longitude 15.5442 ± 0.0231
Depth (km) 83 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96041911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1939
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 1940
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.89842
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 96041911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-29 19:32:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTV.EHZ. 2021-09-29T19:22:36.25 3.0 undecidable manual Pg 13.82 0
IV.CADC.EHZ. 2021-09-29T19:22:28.09 3.0 positive manual Pn -1.4 0
IV.IMOL.HNZ. 2021-09-29T19:22:25.62 3.0 negative manual Pg 17.33 0
IV.BOZZ.EHZ. 2021-09-29T19:22:23.95 3.0 positive manual Pn 0.35 0
CR.STON.BHZ. 2021-09-29T19:22:23.18 3.0 undecidable manual Sn -6.87 0
AC.VLO.HHZ. 2021-09-29T19:22:05.18 3.0 undecidable manual Sn -1.68 0
IV.PE3.EHZ. 2021-09-29T19:21:51.17 3.0 positive manual Pn -5.51 0
IV.MTGR.HHZ. 2021-09-29T19:21:48.11 3.0 undecidable manual Sg -2.44 0
IV.VCRE.HHZ. 2021-09-29T19:21:42.51 3.0 undecidable manual Sg 2.37 0
IV.RESU.HHZ. 2021-09-29T19:21:32.94 3.0 undecidable manual Sg 0.15 0
IX.PGN3.HHZ.02 2021-09-29T19:21:28.06 3.0 undecidable manual Sg 0.45 0
OT.OT17.EHZ. 2021-09-29T19:21:23.26 3.0 positive manual Pg 2.17 0
IV.CRJA.HHZ. 2021-09-29T19:21:16.34 3.0 positive manual Pg -0.26 0
IV.CELI.HHZ. 2021-09-29T19:21:05.26 0.3 undecidable manual S 56 0.8984 123 0.45 64
IV.PLAC.HHZ. 2021-09-29T19:21:03.07 0.3 undecidable manual S 123 0.8328 126 -0.45 68
IV.SPS2.HHZ. 2021-09-29T19:21:01.49 0.3 undecidable manual S 58 0.7276 130 -0.03 74
IV.CET2.HHZ. 2021-09-29T19:21:01.06 0.3 undecidable manual S 27 0.6997 131 0.03 75
IV.MSRU.HHZ. 2021-09-29T19:21:00.35 0.6 undecidable manual S 183 0.6412 134 0.36 48
IV.CAR1.HNZ. 2021-09-29T19:20:59.18 0.6 undecidable manual S 56 0.6241 135 -0.52 46
IV.PIPA.HHZ. 2021-09-29T19:20:57.88 3.0 negative manual Pg 1.51 0
IV.JOPP.HHZ. 2021-09-29T19:20:56.62 0.3 undecidable manual S 138 0.3993 148 0.27 75
IV.GRIS.EHE. 2021-09-29T19:20:51.05 0.6 undecidable manual P 16 0.8687 124 0.05 48
IV.PLAC.HHZ. 2021-09-29T19:20:51.39 0.3 undecidable manual P 123 0.8328 126 0.8 57
IV.CELI.HHZ. 2021-09-29T19:20:51.29 0.1 undecidable manual P 56 0.8984 123 -0.05 96
IV.CET2.HHZ. 2021-09-29T19:20:49.18 0.1 undecidable manual P 27 0.6997 131 0.02 100
IV.SPS2.HHZ. 2021-09-29T19:20:49.14 0.3 undecidable manual P 58 0.7276 130 -0.3 70
IV.MSRU.HHZ. 2021-09-29T19:20:48.38 0.1 undecidable manual P 183 0.6412 134 -0.18 97
IV.CAR1.HNZ. 2021-09-29T19:20:48.05 0.3 undecidable manual P 56 0.6241 135 -0.34 71
IV.JOPP.HHZ. 2021-09-29T19:20:46.48 0.3 undecidable manual P 138 0.3993 148 0.02 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CET2.HHE. ML:2 8.095E-5 0.5 AML other m 2021-09-29T19:21:02.42
IV.SPS2.HHN. ML:1.7 3.75E-5 0.3 AML other m 2021-09-29T19:21:02.38
IV.CET2.HHN. ML:2.2 0.0001315 1.5 AML other m 2021-09-29T19:21:03.07
IV.SPS2.HHE. ML:1.3 1.55E-5 1.24 AML other m 2021-09-29T19:21:05.80
IV.JOPP.HHE. ML:1.1 1.3356654E-5 0.2048 AML other m 2021-09-29T19:20:56.95
IV.JOPP.HHN. ML:1.7 5.156183E-5 0.128 AML other m 2021-09-29T19:20:56.71
IV.JOPP.HNE. ML:1.6 3.928309E-5 0.2688 AML other m 2021-09-29T19:20:56.70
IV.JOPP.HNN. ML:1.7 5.093729E-5 0.128 AML other m 2021-09-29T19:20:56.71
IV.MSRU.HHE. ML:1.9 7.551633E-5 0.4864 AML other m 2021-09-29T19:21:02.59
IV.MSRU.HHN. ML:1.8 5.892695E-5 0.8192 AML other m 2021-09-29T19:21:00.70
IV.CELI.HNE. ML:1.5 1.965133E-5 3.4688 AML other m 2021-09-29T19:21:07.39
IV.CELI.HNN. ML:1.8 3.9312E-5 0.8832 AML other m 2021-09-29T19:21:05.80
IV.CELI.HHE. ML:0.9 6.1593825E-6 0.6656 AML other m 2021-09-29T19:21:05.93
IV.CELI.HHN. ML:1.2 1.1057535E-5 0.4864 AML other m 2021-09-29T19:21:05.39
IV.PLAC.HNE. ML:1.3 1.6640539E-5 0.7552 AML other m 2021-09-29T19:21:03.31
IV.PLAC.HNN. ML:1.8 3.869164E-5 0.8832 AML other m 2021-09-29T19:21:02.33
IV.PLAC.HHE. ML:0.8 7.017426E-6 0.576 AML other m 2021-09-29T19:21:03.49
IV.PLAC.HHN. ML:1.2 1.1412736E-5 0.3712 AML other m 2021-09-29T19:21:03.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download