Earthquake with magnitude of ML 2.0 on date 04-07-2021 and time 06:31:58 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 04-07-2021 04:31:58 (UTC)
  • 04-07-2021 06:31:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.672, 15.471 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
54 Km N of Messina (238439 inhabitants)
64 Km N of Reggio di Calabria (183035 inhabitants)
81 Km W of Lamezia Terme (70714 inhabitants)
97 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 2.0 2021-07-04
04:31:58
38.6718 15.4712 183 2021-12-29
11:12:16
Bollettino Sismico Italiano INGV 93572281
Reviewed
Rev100
ML 1.8 2021-07-04
04:31:59
38.846 15.3403 169 2021-07-04
04:41:14
Sala Sismica INGV-Roma 92217151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-04 04:31:58 ± 0.27
Latitude 38.6718 ± 0.0198
Longitude 15.4712 ± 0.0369
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 93572281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3583
Semi-minor axis of confidence ellipse (meter) 421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 3580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.33005
Epicentral distance of station farthest from the epicenter (degree) 1.5963
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 92217151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-04 04:41:14

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 93572281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-22 13:58:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2021-07-04T04:32:54.17 0.6 undecidable manual S 29 1.3814 138 0.63 36
IV.CELI.HHE. 2021-07-04T04:32:50.15 0.6 undecidable manual S 47 1.0873 145 1.02 33
MN.TIP.HHZ. 2021-07-04T04:32:49.55 0.6 undecidable manual S 63 1.1215 144 -0.06 44
IV.SERS.HHZ. 2021-07-04T04:32:48.27 0.3 undecidable manual S 69 1.0144 147 0.12 67
IV.SELL.HHZ. 2021-07-04T04:32:47.92 0.6 undecidable manual S 71 0.9524 148 0.57 41
IV.CET2.HHZ. 2021-07-04T04:32:46.60 0.3 undecidable manual S 23 0.9344 149 -0.53 62
IV.SPS2.HHZ. 2021-07-04T04:32:46.85 0.6 undecidable manual S 47 0.9146 149 -0.03 46
IV.CAR1.HHN. 2021-07-04T04:32:45.31 0.6 undecidable manual S 44 0.8175 152 -0.44 43
IV.MILZ.HHN. 2021-07-04T04:32:43.30 0.6 undecidable manual S 205 0.4425 164 0.92 38
IV.GIZZ.HHZ. 2021-07-04T04:32:42.93 0.6 undecidable manual S 62 0.6511 157 -1.11 34
IV.MSRU.HHZ. 2021-07-04T04:32:42.55 0.6 undecidable manual S 176 0.4092 165 0.38 48
MN.CEL.HHZ. 2021-07-04T04:32:42.87 0.6 undecidable manual S 141 0.5279 161 -0.12 50
IV.JOPP.HHZ. 2021-07-04T04:32:41.61 0.3 undecidable manual S 101 0.3301 168 -0.12 77
IV.SCHR.EHZ. 2021-07-04T04:32:33.05 0.3 undecidable manual P 17 1.5963 134 0.59 48
IV.SALB.HHZ. 2021-07-04T04:32:30.64 0.3 undecidable manual P 29 1.3814 138 0.25 59
IV.PIPA.HHZ. 2021-07-04T04:32:29.98 0.3 undecidable manual P 52 1.322 139 0.14 62
IV.CELI.HHE. 2021-07-04T04:32:28.21 0.3 undecidable manual P 47 1.0873 145 0.37 62
MN.TIP.HHZ. 2021-07-04T04:32:28.00 0.1 undecidable manual P 63 1.1215 144 -0.12 87
IV.SELL.HHZ. 2021-07-04T04:32:27.09 0.1 undecidable manual P 71 0.9524 148 0.28 87
IV.SPS2.HHZ. 2021-07-04T04:32:26.33 0.3 undecidable manual P 47 0.9146 149 -0.21 67
IV.SERS.HHZ. 2021-07-04T04:32:26.82 0.6 undecidable manual P 69 1.0144 147 -0.46 41
IV.CET2.HHZ. 2021-07-04T04:32:26.58 0.3 undecidable manual P 23 0.9344 149 -0.1 68
IV.GRI.EHN. 2021-07-04T04:32:25.75 0.3 undecidable manual P 78 0.7545 154 0.26 69
IV.FERC.HNN. 2021-07-04T04:32:25.08 0.1 undecidable manual P 113 0.5585 160 0.65 85
IV.PLAC.HHE. 2021-07-04T04:32:25.63 0.3 undecidable manual P 106 0.7878 153 -0.06 71
IV.CAR1.HHN. 2021-07-04T04:32:25.41 0.3 undecidable manual P 44 0.8175 152 -0.47 65
IV.SOI.EHN. 2021-07-04T04:32:25.57 0.3 undecidable manual P 142 0.7527 154 0.09 71
MN.CEL.HHZ. 2021-07-04T04:32:24.03 0.1 undecidable manual P 141 0.5279 161 -0.27 96
IV.GIZZ.HHZ. 2021-07-04T04:32:24.40 0.1 undecidable manual P 62 0.6511 157 -0.5 89
IV.MILZ.HHN. 2021-07-04T04:32:23.99 0.6 undecidable manual P 205 0.4425 164 0.05 51
IV.SICLA.EHN. 2021-07-04T04:32:23.61 0.3 undecidable manual P 155 0.4569 164 -0.39 72
IV.JOPP.HHZ. 2021-07-04T04:32:23.49 0.3 undecidable manual P 101 0.3301 168 -0.08 78
IV.MSRU.HHZ. 2021-07-04T04:32:23.60 0.1 undecidable manual P 176 0.4092 165 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHN. ML:2 3.0906595E-5 0.7232 AML other m 2021-07-04T04:32:43.21
MN.CEL.HHN. ML:1.7 1.5406475E-5 0.32 AML other m 2021-07-04T04:32:44.54
IV.JOPP.HHE. ML:1.6 1.4264395E-5 1.36 AML other m 2021-07-04T04:32:45.64
IV.SPS2.HHN. ML:1.7 1.66E-5 0.86 AML other m 2021-07-04T04:32:47.67
IV.SERS.HHN. ML:1.9 2.175E-5 1.6 AML other m 2021-07-04T04:32:48.08
IV.MSRU.HHE. ML:2 3.693813E-5 1.7792 AML other m 2021-07-04T04:32:50.35
IV.SPS2.HHE. ML:1.6 9.045E-6 0.54 AML other m 2021-07-04T04:32:49.59
MN.TIP.HHN. ML:1.6 1.06436585E-5 0.2816 AML other m 2021-07-04T04:32:50.06
IV.SERS.HHE. ML:1.9 1.81E-5 0.3 AML other m 2021-07-04T04:32:50.15
MN.CEL.HHE. ML:1.8 2.0533425E-5 2.1216 AML other m 2021-07-04T04:32:49.30
IV.SERS.HNE. ML:2.2 4.566379E-5 0.7808 AML other m 2021-07-04T04:32:51.47
MN.TIP.HHE. ML:1.8 1.263E-5 0.62 AML other m 2021-07-04T04:32:51.93
IV.SERS.HNN. ML:2.1 3.11461515E-5 0.5376 AML other m 2021-07-04T04:32:51.64
MN.TIP.HNE. ML:2.7 0.000112739255 5.9008 AML other m 2021-07-04T04:32:53.17
MN.CEL.HNE. ML:2.6 0.00014637055 3.5008 AML other m 2021-07-04T04:32:55.21
IV.JOPP.HNE. ML:2.2 5.3027945E-5 0.7904 AML other m 2021-07-04T04:33:00.02
IV.JOPP.HHN. ML:1.8 2.1152005E-5 0.96 AML other m 2021-07-04T04:33:00.96
IV.JOPP.HNN. ML:2.1 4.1560964E-5 0.9408 AML other m 2021-07-04T04:33:02.76
MN.TIP.HNN. ML:2.5 7.2091445E-5 1.2192 AML other m 2021-07-04T04:33:09.88
MN.CEL.HNN. ML:2.4 8.797425E-5 1.3792 AML other m 2021-07-04T04:33:11.86
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