Earthquake with magnitude of ML 2.8 on date 23-07-2021 and time 01:41:08 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 22-07-2021 23:41:08 (UTC)
  • 23-07-2021 01:41:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.5140, 15.4770 at 276 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
71 Km W of Cosenza (67546 inhabitants)
94 Km NW of Lamezia Terme (70714 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.8 2021-07-22
23:41:08
39.5142 15.4772 276 2021-12-29
11:12:51
Bollettino Sismico Italiano INGV 97494151
Reviewed
Rev100
ML 2.8 2021-07-22
23:41:09
39.5107 15.395 273 2021-07-23
00:02:44
Sala Sismica INGV-Roma 93086651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-22 23:41:08 ± 0.23
Latitude 39.5142 ± 0.0108
Longitude 15.4772 ± 0.0268
Depth (km) 276 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97494151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2144
Semi-minor axis of confidence ellipse (meter) 881
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 2140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 76
Number of defining phases 76
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) 0.36692
Epicentral distance of station farthest from the epicenter (degree) 2.82567
Number of stations at which the event was observed 61
Number of stations from which data was used for origin computation 61
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations 47
Type of magnitude ML
Reference to an origin 97494151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-16 16:11:40

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations 47
Type of magnitude ML
Reference to an origin 93086651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-23 00:02:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2021-07-22T23:42:18.80 0.6 undecidable manual S 145 144.2445 151 -0.07 43
IV.GRI.EHZ. 2021-07-22T23:42:17.50 0.6 undecidable manual S 133 111.6993 157 1.69 23
IV.LADO.EHZ. 2021-07-22T23:42:17.70 0.6 undecidable manual S 101 131.2686 154 0.13 43
IV.SERS.HHZ. 2021-07-22T23:42:16.40 0.6 undecidable manual S 117 116.7942 156 0.15 45
IV.SELL.HHZ. 2021-07-22T23:42:16.40 0.6 undecidable manual S 120 115.0959 157 0.3 43
MN.TIP.HHZ. 2021-07-22T23:42:16.00 0.6 undecidable manual S 108 115.995 156 -0.18 45
IV.CELI.HHZ. 2021-07-22T23:42:15.90 0.6 undecidable manual S 98 89.244 161 1.8 22
IV.JOPP.HHZ. 2021-07-22T23:42:15.10 0.6 undecidable manual S 161 106.6155 158 -0.3 44
IV.TDS.HHZ. 2021-07-22T23:42:13.90 0.6 undecidable manual S 77 75.369 164 0.68 42
IV.GIZZ.HHZ. 2021-07-22T23:42:13.20 0.6 undecidable manual S 133 86.3469 162 -0.7 41
IV.SPS2.HHZ. 2021-07-22T23:42:13.30 0.6 undecidable manual S 108 77.8665 164 -0.07 49
IV.CAR1.HHZ. 2021-07-22T23:42:12.10 0.3 undecidable manual S 114 69.2751 165 -0.77 62
MN.CUC.HHZ. 2021-07-22T23:42:12.20 0.6 undecidable manual S 28 60.495 167 -0.22 49
IV.GRIS.EHZ. 2021-07-22T23:42:11.30 0.6 undecidable manual S 52 40.7259 171 -0.34 50
IV.CET2.HHZ. 2021-07-22T23:42:11.20 0.6 undecidable manual S 88 40.9257 171 -0.43 49
IV.HPAC.HHZ. 2021-07-22T23:42:02.31 0.3 undecidable manual P 187 313.6527 130 -0.51 19
IV.HAVL.HHZ. 2021-07-22T23:41:59.12 0.3 undecidable manual P 186 285.1035 132 -1.03 18
IV.HVZN.HHZ. 2021-07-22T23:41:58.69 0.6 undecidable manual P 195 267.4323 134 0.13 20
IV.SCTE.HHZ. 2021-07-22T23:41:57.88 0.3 undecidable manual P 75 262.2375 135 -0.22 31
IV.SSY.HHZ. 2021-07-22T23:41:57.29 0.3 undecidable manual P 188 263.736 135 -0.94 24
IV.HCRL.HHZ. 2021-07-22T23:41:56.78 0.3 undecidable manual P 189 250.4604 136 -0.29 33
IV.HLNI.HHZ. 2021-07-22T23:41:56.02 0.1 undecidable manual P 193 245.9649 137 -0.66 42
IV.HAGA.HHZ. 2021-07-22T23:41:56.08 0.3 undecidable manual P 187 248.862 136 -0.86 28
IV.PETRA.HHZ. 2021-07-22T23:41:55.35 0.3 undecidable manual P 213 220.6125 140 0.76 36
IV.ESCV.HHZ. 2021-07-22T23:41:53.79 0.3 undecidable manual P 197 204.24 142 0.47 44
OT.CGL1.HHZ. 2021-07-22T23:41:53.29 0.3 undecidable manual P 53 214.0191 141 -0.78 37
IV.EFIU.HHZ. 2021-07-22T23:41:52.64 0.3 undecidable manual P 187 192.6627 144 0.19 50
IV.NOCI.HHZ. 2021-07-22T23:41:51.65 0.3 undecidable manual P 43 195.1602 143 -0.99 38
IV.NOV.HHZ. 2021-07-22T23:41:51.04 0.3 undecidable manual P 190 167.5101 148 0.36 55
IV.MSFR.HHZ. 2021-07-22T23:41:51.93 0.1 undecidable manual P 205 181.1853 146 0.31 70
OT.TAR1.HHZ. 2021-07-22T23:41:51.24 0.3 undecidable manual P 53 190.1652 144 -1.02 38
IV.AIO.HHE. 2021-07-22T23:41:51.23 0.3 undecidable manual P 187 172.494 147 0.21 56
IV.MTTG.HHZ. 2021-07-22T23:41:50.70 0.3 undecidable manual P 173 168.7089 147 -0.06 58
IV.MUCR.HHE. 2021-07-22T23:41:50.75 0.1 undecidable manual P 198 171.2952 147 -0.19 75
IV.MCPD.HHE. 2021-07-22T23:41:50.63 0.1 undecidable manual P 203 167.61 148 -0.05 78
IV.SOI.EHZ. 2021-07-22T23:41:50.34 0.1 undecidable manual P 162 167.4102 148 -0.34 74
IV.PLAC.HHZ. 2021-07-22T23:41:49.22 0.1 undecidable manual P 145 144.2445 151 0 87
IV.IVUG.HHZ. 2021-07-22T23:41:49.30 0.3 undecidable manual P 199 131.0688 154 0.84 53
IV.MCRV.HHZ. 2021-07-22T23:41:49.15 0.3 undecidable manual P 350 143.1456 152 0 65
IV.IVPL.HNE. 2021-07-22T23:41:49.14 0.3 undecidable manual P 199 133.2666 153 0.56 59
IV.FERC.HNN. 2021-07-22T23:41:48.16 0.3 undecidable manual P 154 130.4694 154 -0.27 64
MN.TIP.HHZ. 2021-07-22T23:41:48.09 0.1 negative manual P 108 115.995 156 0.43 84
IV.IFIL.HHN. 2021-07-22T23:41:48.19 0.6 undecidable manual P 217 130.9689 154 -0.26 42
IV.SICLA.EHZ. 2021-07-22T23:41:48.42 0.3 undecidable manual P 172 141.0477 152 -0.6 57
IV.ILOS.HHN. 2021-07-22T23:41:48.60 0.6 undecidable manual P 201 126.9729 154 0.37 42
IV.SERS.HHZ. 2021-07-22T23:41:48.05 0.1 negative manual P 117 116.7942 156 0.34 86
IV.MSRU.HHZ. 2021-07-22T23:41:48.42 0.3 undecidable manual P 179 138.7611 152 -0.47 60
IX.COL3.HHZ.02 2021-07-22T23:41:48.83 0.6 undecidable manual P 355 130.6692 154 0.39 41
IV.PIPA.HHZ. 2021-07-22T23:41:48.01 0.1 negative manual P 91 114.5964 157 0.41 85
IV.PTRP.HHZ. 2021-07-22T23:41:48.06 0.6 undecidable manual P 24 122.2887 155 0.08 45
IV.LADO.EHZ. 2021-07-22T23:41:48.59 0.1 undecidable manual P 101 131.2686 154 0.12 87
IV.SLCN.HNZ. 2021-07-22T23:41:47.19 0.3 undecidable manual P 8 98.0241 160 0.36 67
IV.ORI.HHN. 2021-07-22T23:41:47.53 0.3 undecidable manual P 54 102.12 159 0.52 64
IX.SRN3.HNE.02 2021-07-22T23:41:47.24 0.6 undecidable manual P 359 107.8143 158 -0.03 47
IV.SELL.HHZ. 2021-07-22T23:41:47.96 0.1 negative manual P 120 115.0959 157 0.34 86
IV.MCEL.HHZ. 2021-07-22T23:41:47.19 0.3 undecidable manual P 17 94.1391 160 0.52 65
IV.GRI.EHZ. 2021-07-22T23:41:47.64 0.3 undecidable manual P 133 111.6993 157 0.19 67
IV.CDRU.HNZ. 2021-07-22T23:41:47.26 0.1 undecidable manual P 352 109.2129 158 -0.08 92
IV.CELI.HHZ. 2021-07-22T23:41:47.49 0.1 negative manual P 98 89.244 161 1.03 70
IV.SGO.HHE. 2021-07-22T23:41:47.73 0.3 undecidable manual P 353 116.994 156 0.01 69
IV.CRAC.EHZ. 2021-07-22T23:41:47.83 0.3 undecidable manual P 40 126.0738 155 -0.36 63
IV.MTSN.HHZ. 2021-07-22T23:41:46.09 0.3 undecidable manual P 16 86.6466 162 -0.27 69
IV.CMPR.HNZ. 2021-07-22T23:41:46.48 0.1 undecidable manual P 351 90.4428 161 -0.04 96
IV.SIRI.HHZ. 2021-07-22T23:41:46.02 0.3 undecidable manual P 24 81.252 163 -0.14 72
IV.SCHR.EHZ. 2021-07-22T23:41:46.98 0.1 undecidable manual P 34 91.5417 161 0.42 89
IV.IST3.HHZ. 2021-07-22T23:41:46.65 0.1 negative manual P 195 82.0512 163 0.46 90
IV.SPS2.HHZ. 2021-07-22T23:41:46.18 0.3 undecidable manual P 108 77.8665 164 0.14 73
IV.JOPP.HHZ. 2021-07-22T23:41:46.79 0.1 undecidable manual P 161 106.6155 158 -0.43 86
IV.TDS.HHZ. 2021-07-22T23:41:46.42 0.1 undecidable manual P 77 75.369 164 0.47 91
IV.MGR.HHZ. 2021-07-22T23:41:45.68 0.1 undecidable manual P 5 69.4749 165 -0.08 99
MN.CUC.HHZ. 2021-07-22T23:41:45.28 0.1 undecidable manual P 28 60.495 167 -0.22 99
IV.CAR1.HHZ. 2021-07-22T23:41:45.26 0.1 undecidable manual P 114 69.2751 165 -0.5 91
IV.MMN.HHZ. 2021-07-22T23:41:45.29 0.3 undecidable manual P 46 60.5949 167 -0.21 74
IV.GIZZ.HHZ. 2021-07-22T23:41:45.78 0.3 undecidable manual P 133 86.3469 162 -0.57 65
IV.GRIS.EHZ. 2021-07-22T23:41:44.72 0.1 undecidable manual P 52 40.7259 171 -0.32 100
IV.CET2.HHZ. 2021-07-22T23:41:44.70 0.1 undecidable manual P 88 40.9257 171 -0.34 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GRIS.EHN. ML:2.5 0.0000524 1.56 AML other m 2021-07-22T23:41:46.85
IV.GRIS.EHE. ML:2.6 0.0000671 0.68 AML other m 2021-07-22T23:42:11.25
IV.CET2.HHN. ML:3.3 0.000304 0.6 AML other m 2021-07-22T23:42:12.61
IV.CET2.HHE. ML:2.9 0.0001205 1.34 AML other m 2021-07-22T23:42:13.91
IV.CAR1.HHN. ML:2.9 0.00010705 0.4 AML other m 2021-07-22T23:42:13.82
MN.CUC.HHN. ML:2.6 0.00006135 0.74 AML other m 2021-07-22T23:42:13.66
MN.CUC.HHE. ML:2.5 0.000044899999999999994 0.68 AML other m 2021-07-22T23:42:13.59
IV.MGR.HHN. ML:2.6 0.0000579 0.84 AML other m 2021-07-22T23:42:15.37
IV.TDS.HHE. ML:2.6 0.00005395 0.94 AML other m 2021-07-22T23:42:15.99
IV.NOCI.HHN. ML:2.7 0.000050799999999999995 0.54 AML other m 2021-07-22T23:42:16.29
IV.CAR1.HHE. ML:2.8 0.00007885 0.42 AML other m 2021-07-22T23:42:16.87
IV.CELI.HHE. ML:2.8 0.00008219999999999999 0.96 AML other m 2021-07-22T23:42:16.34
IV.TDS.HHN. ML:2.5 0.00003795 0.44 AML other m 2021-07-22T23:42:16.96
MN.TIP.HHN. ML:2.8 0.00006875 0.38 AML other m 2021-07-22T23:42:17.08
IV.CELI.HHN. ML:3.0 0.00014649999999999998 0.46 AML other m 2021-07-22T23:42:17.22
MN.TIP.HHE. ML:2.6 0.000053871775 0.5472 AML other m 2021-07-22T23:42:17.22
IV.SCHR.EHE. ML:2.5 0.000046 0.76 AML other m 2021-07-22T23:42:17.89
IV.MGR.HHE. ML:2.4 0.000035749999999999995 0.54 AML other m 2021-07-22T23:42:17.76
IV.SPS2.HHE. ML:2.5 0.000047350000000000006 0.46 AML other m 2021-07-22T23:42:17.83
IV.MCEL.HHE. ML:2.6 0.000054099999999999994 1.38 AML other m 2021-07-22T23:42:17.23
IV.SERS.HHN. ML:2.9 0.00009423171499999999 0.3584 AML other m 2021-07-22T23:42:17.82
IV.SERS.HHE. ML:2.8 0.00008176062 0.8352 AML other m 2021-07-22T23:42:18.22
IV.SPS2.HHN. ML:2.5 0.00004 0.54 AML other m 2021-07-22T23:42:18.70
IV.MCEL.HHN. ML:2.8 0.0000857 0.74 AML other m 2021-07-22T23:42:18.07
IV.GRI.EHN. ML:3.0 0.00012173064999999999 1.2512 AML other m 2021-07-22T23:42:18.74
IV.PIPA.HHN. ML:2.9 0.000090947005 1.0528 AML other m 2021-07-22T23:42:19.33
IV.SELL.HHN. ML:2.6 0.00004869753 0.1568 AML other m 2021-07-22T23:42:19.62
IV.PIPA.HHE. ML:3.0 0.00011678630000000001 1.6672 AML other m 2021-07-22T23:42:19.92
IV.SCHR.EHN. ML:2.4 0.000032175325000000005 0.64 AML other m 2021-07-22T23:42:20.23
IV.CRAC.EHN. ML:2.8 0.00008080362499999999 0.4544 AML other m 2021-07-22T23:42:20.39
IV.SELL.HNN. ML:3.2 0.00021944005 0.8768 AML other m 2021-07-22T23:42:21.25
IV.SELL.HHE. ML:2.7 0.0000594 0.56 AML other m 2021-07-22T23:42:21.58
IV.PLAC.HHN. ML:2.9 0.00008935205 0.1376 AML other m 2021-07-22T23:42:21.47
IV.CRAC.EHE. ML:2.8 0.0000743 0.52 AML other m 2021-07-22T23:42:21.35
IV.MTSN.HHE. ML:2.4 0.00003485 1.44 AML other m 2021-07-22T23:42:22.07
IV.NOCI.HHE. ML:2.8 0.000060150000000000005 0.42 AML other m 2021-07-22T23:42:22.54
OT.TAR1.HHN. ML:3.0 0.00010245 1.3 AML other m 2021-07-22T23:42:23.21
IV.GRI.EHE. ML:2.9 0.00010550055 1.0464 AML other m 2021-07-22T23:42:24.82
IV.PLAC.HNE. ML:2.9 0.000084314635 0.7232 AML other m 2021-07-22T23:42:24.69
IV.MTTG.HHE. ML:3.0 0.00009359999999999998 0.66 AML other m 2021-07-22T23:42:25.78
IV.MTTG.HHN. ML:3.0 0.00009970000000000001 0.56 AML other m 2021-07-22T23:42:26.60
IV.MTSN.HHN. ML:2.4 0.00003734999999999999 0.64 AML other m 2021-07-22T23:42:26.68
IV.SICLA.EHN. ML:3.2 0.0002045 0.46 AML other m 2021-07-22T23:42:28.09
IV.SICLA.EHE. ML:3.2 0.0001655 0.48 AML other m 2021-07-22T23:42:29.67
IV.PETRA.HHN. ML:2.7 0.00004720000000000001 1.24 AML other m 2021-07-22T23:42:31.81
IV.PETRA.HHE. ML:2.6 0.00002836869 0.4608 AML other m 2021-07-22T23:42:39.26
OT.TAR1.HHE. ML:2.9 0.00007209999999999999 1.36 AML other m 2021-07-22T23:42:55.97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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 miniseed + resp format Download