Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-03-2017 and time 22:07:35 (Italy) in region Tirreno Meridionale (MARE)

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

  • 23-03-2017 21:07:35 (UTC)
  • 23-03-2017 22:07:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6500, 15.4860 at 165 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km N of Messina (238439 inhabitants)
62 Km N of Reggio di Calabria (183035 inhabitants)
81 Km W of Lamezia Terme (70714 inhabitants)
98 Km SW of Cosenza (67546 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.1 2017-03-23
21:07:35		 38.6495 15.4863 165 2018-01-10
09:55:05		 Bollettino Sismico Italiano INGV 50848801
Reviewed
Rev100 		ML 2.2 2017-03-23
21:07:34		 38.6653 15.4258 163 2017-03-23
21:18:08		 Sala Sismica INGV-Roma 42838671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-23 21:07:35 ± 0.26
Latitude 38.6495 ± 0.0144
Longitude 15.4863 ± 0.0276
Depth (km) 165 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50848801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2594
Semi-minor axis of confidence ellipse (meter) 700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 2590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 28
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.12235
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 50848801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-12 13:20:12

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 42838671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-23 21:18:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1211.EHZ. 2017-03-23T21:09:39.96 3.0 undecidable manual Sn 4.33 0
IV.T1241.EHZ. 2017-03-23T21:09:38.41 3.0 undecidable manual Sn 0.13 0
IV.NRCA.HHZ. 2017-03-23T21:09:38.32 3.0 undecidable manual Sn -1.65 0
IV.T1217.EHZ. 2017-03-23T21:09:38.94 3.0 undecidable manual Sn 0.18 0
IV.T1212.EHZ. 2017-03-23T21:09:37.85 3.0 undecidable manual Sn -0.88 0
IV.T1214.EHZ. 2017-03-23T21:09:36.90 3.0 undecidable manual Sn -0.79 0
IV.RM33.EHZ. 2017-03-23T21:09:36.67 3.0 undecidable manual Sn 4.4 0
IV.T1218.EHZ. 2017-03-23T21:09:36.46 3.0 undecidable manual Sn 0.01 0
IV.T1299.EHZ. 2017-03-23T21:09:34.91 3.0 undecidable manual Sn 0.46 0
IV.LRP.HHZ. 2017-03-23T21:09:29.12 3.0 undecidable manual Sg 17.809999 0
SL.KOGS.BHZ. 2017-03-23T21:09:27.57 3.0 undecidable manual Pn -2.37 0
IV.CAVE.HHZ. 2017-03-23T21:09:25.77 3.0 undecidable manual Pn 5.67 0
IV.FDMO.HHZ. 2017-03-23T21:09:10.48 3.0 undecidable manual Pg 21.639999 0
AC.VLO.HHZ. 2017-03-23T21:09:09.91 3.0 undecidable manual Sn -5.3 0
IV.PP3.EHZ. 2017-03-23T21:09:09.51 3.0 negative manual Pg 18.23 0
IV.VAGA.HHZ. 2017-03-23T21:09:03.95 3.0 undecidable manual Sn 2.05 0
IV.CERT.HHZ. 2017-03-23T21:08:51.41 3.0 undecidable manual Pg 14.89 0
IV.RM33.EHZ. 2017-03-23T21:08:48.26 3.0 negative manual Pn 6.32 0
IV.NOCI.HHZ. 2017-03-23T21:08:45.95 3.0 undecidable manual Sn -4.25 0
IV.CELI.HHZ. 2017-03-23T21:08:23.48 0.6 undecidable manual S 46 121.3896 141 1.06 32
MN.TIP.HHZ. 2017-03-23T21:08:22.87 0.6 undecidable manual S 61 124.5864 141 0.03 45
IV.SERS.HHZ. 2017-03-23T21:08:21.40 0.6 undecidable manual S 67 112.3986 144 0.17 45
IV.CET2.HHZ. 2017-03-23T21:08:19.78 0.6 undecidable manual S 22 105.5166 145 -0.6 41
IV.SPS2.HHZ. 2017-03-23T21:08:19.96 0.6 undecidable manual S 46 102.3198 146 -0.03 48
IV.PLAC.HHZ. 2017-03-23T21:08:18.34 0.6 undecidable manual S 105 85.5477 151 0.25 46
IV.SOI.EHZ. 2017-03-23T21:08:17.36 0.6 undecidable manual S 142 80.7636 152 -0.25 48
IV.CAR1.HHN. 2017-03-23T21:08:17.99 0.6 undecidable manual S 43 91.6416 149 -0.76 40
IV.MTTG.HHZ. 2017-03-23T21:08:16.83 0.6 undecidable manual S 165 74.0703 154 -0.13 49
IV.GMB.BHZ. 2017-03-23T21:08:16.02 3.0 undecidable manual S 0.24 0
IV.MILZ.HHN. 2017-03-23T21:08:15.20 0.6 undecidable manual S 208 47.4192 163 0.34 50
IV.MSCL.HHN. 2017-03-23T21:08:15.84 0.6 undecidable manual S 150 53.3022 161 0.59 45
IV.MSRU.HHZ. 2017-03-23T21:08:14.54 0.6 undecidable manual S 177 42.8238 165 -0.05 53
IV.CRAC.EHZ. 2017-03-23T21:08:12.43 3.0 positive manual Pn 1.01 0
IV.MIGL.HHZ. 2017-03-23T21:08:11.78 3.0 undecidable manual Pn -2.13 0
IV.CDRU.HHZ. 2017-03-23T21:08:08.34 3.0 negative manual Pn -3.04 0
IV.HLNI.HHZ. 2017-03-23T21:08:04.92 3.0 negative manual Pn -0.81 0
MN.TIP.HHZ. 2017-03-23T21:08:02.54 0.3 undecidable manual P 61 124.5864 141 -0.08 67
IV.CELI.HHZ. 2017-03-23T21:08:02.81 0.1 undecidable manual P 46 121.3896 141 0.43 84
IV.SERS.HHZ. 2017-03-23T21:08:01.71 0.1 undecidable manual P 67 112.3986 144 0.02 94
IV.SPS2.HHZ. 2017-03-23T21:08:01.15 0.1 undecidable manual P 46 102.3198 146 0.17 93
IV.CET2.HHZ. 2017-03-23T21:08:01.11 0.1 undecidable manual P 22 105.5166 145 -0.09 92
IV.GRI.EHN. 2017-03-23T21:07:59.95 0.1 undecidable manual P 76 83.0502 152 0.22 95
IV.CAR1.HHN. 2017-03-23T21:07:59.97 0.3 undecidable manual P 43 91.6416 149 -0.29 68
IV.SOI.EHZ. 2017-03-23T21:07:59.41 0.1 negative manual P 142 80.7636 152 -0.2 95
IV.NOV.HHZ. 2017-03-23T21:07:59.89 0.3 undecidable manual P 204 75.369 154 0.59 67
IV.PLAC.HHZ. 2017-03-23T21:07:59.75 0.1 negative manual P 105 85.5477 151 -0.13 96
IV.MTTG.HHZ. 2017-03-23T21:07:59.51 0.1 undecidable manual P 165 74.0703 154 0.28 96
IV.GMB.BHZ. 2017-03-23T21:07:58.60 3.0 positive manual P 0.09 0
IV.IVPL.HHZ. 2017-03-23T21:07:58.66 0.3 undecidable manual P 236 53.4021 161 0.41 73
IV.MSCL.HHN. 2017-03-23T21:07:57.98 0.1 positive manual P 150 53.3022 161 -0.27 99
MN.CEL.HNZ. 2017-03-23T21:07:57.93 0.3 undecidable manual P 141 55.7997 160 -0.42 71
IV.MILZ.HHN. 2017-03-23T21:07:57.79 0.1 undecidable manual P 208 47.4192 163 -0.23 100
IV.MSRU.HHZ. 2017-03-23T21:07:57.36 0.1 negative manual P 177 42.8238 165 -0.5 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHN. ML:2.2 0.00006890000000000001 1.28 AML other m 2017-03-23T21:08:15.15
IV.MSRU.HHE. ML:2.3 0.00009135 0.24 AML other m 2017-03-23T21:08:16.41
IV.GMB.BHE. ML:2.8 0.0002305 0.92 AML other m 2017-03-23T21:08:18.28
IV.SOI.EHN. ML:2.1 0.0000434 1.3 AML other m 2017-03-23T21:08:19.70
IV.PLAC.HHN. ML:2.0 0.0000359 1.76 AML other m 2017-03-23T21:08:19.11
IV.SOI.EHE. ML:2.0 0.000039349999999999994 0.42 AML other m 2017-03-23T21:08:19.33
IV.PLAC.HHE. ML:2.3 0.00006685 0.24 AML other m 2017-03-23T21:08:19.54
IV.MTTG.HHE. ML:2.0 0.00003905 0.6 AML other m 2017-03-23T21:08:20.61
IV.SPS2.HHN. ML:1.8 0.000019799999999999997 1.72 AML other m 2017-03-23T21:08:20.04
IV.CET2.HHE. ML:2.4 0.00007015 1.18 AML other m 2017-03-23T21:08:21.79
IV.CET2.HHN. ML:2.3 0.0000603 0.26 AML other m 2017-03-23T21:08:21.38
IV.GMB.BHN. ML:2.7 0.000191 0.16 AML other m 2017-03-23T21:08:21.60
IV.SERS.HHE. ML:1.7 0.00001365 1.36 AML other m 2017-03-23T21:08:22.22
IV.SERS.HHN. ML:1.9 0.00002255 1.64 AML other m 2017-03-23T21:08:22.84
IV.SPS2.HHE. ML:1.5 0.00000832 1.3 AML other m 2017-03-23T21:08:23.26
IV.MTTG.HHN. ML:2.1 0.0000441 0.52 AML other m 2017-03-23T21:08:23.39
MN.TIP.HHN. ML:1.6 0.0000112 0.66 AML other m 2017-03-23T21:08:23.57
MN.TIP.HHE. ML:1.6 0.000011235 0.42 AML other m 2017-03-23T21:08:30.62
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
Waveforms Seismic signals in miniseed + resp format Download