Earthquake with magnitude of ML 3.2 on date 27-10-2020 and time 09:48:57 (UTC) in region Golfo di Policastro (Salerno, Potenza)

A magnitude ML 3.2 earthquake occured in region: Golfo di Policastro (Salerno, Potenza), on

  • 27-10-2020 09:48:57 (UTC)
  • 27-10-2020 10:48:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.7800, 15.3480 at 309 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
95 Km NW of Cosenza (67546 inhabitants)
97 Km SE of Battipaglia (50786 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.2 2020-10-27
09:48:57
39.7797 15.3483 309 2021-02-26
14:56:06
Bollettino Sismico Italiano INGV 84873361
Reviewed
Rev100
ML 3.4 2020-10-27
09:48:58
39.6663 15.1703 306 2020-10-27
10:01:27
Sala Sismica INGV-Roma 84176811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-27 09:48:57 ± 0.28
Latitude 39.7797 ± 0.0126
Longitude 15.3483 ± 0.0304
Depth (km) 309 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84873361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2294
Semi-minor axis of confidence ellipse (meter) 1201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 2290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.29947
Epicentral distance of station farthest from the epicenter (degree) 2.23661
Number of stations at which the event was observed 52
Number of stations from which data was used for origin computation 52
Magnitudes information

ML:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 84873361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-05 10:14:38

ML:3.4

Field Value
Value 3.4
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 84176811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-27 10:01:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2020-10-27T09:50:17.37 0.6 undecidable manual S 147 174.8916 150 -0.15 35
MN.CEL.HHZ. 2020-10-27T09:50:17.10 0.6 undecidable manual S 164 174.9915 150 -0.43 33
IV.MSRU.HHZ. 2020-10-27T09:50:15.73 0.6 undecidable manual S 175 168.7089 150 -1.12 25
XK.SELL.HHZ. 2020-10-27T09:50:14.25 0.6 undecidable manual S 128 140.8479 155 0.16 40
MN.TIP.HHZ. 2020-10-27T09:50:13.96 0.6 undecidable manual S 118 137.862 155 0.14 40
IV.CAR1.HHZ. 2020-10-27T09:50:10.47 0.6 undecidable manual S 128 94.1391 163 0.06 45
IV.CET2.HHZ. 2020-10-27T09:50:08.55 0.6 undecidable manual S 118 58.7967 169 0.02 48
IV.GRIS.HNE. 2020-10-27T09:50:07.90 0.6 undecidable manual S 96 43.2234 172 -0.07 50
IV.MPG.HHE. 2020-10-27T09:49:49.11 0.3 undecidable manual P 224 248.2626 140 -0.04 34
IV.PETRA.HHN. 2020-10-27T09:49:48.95 0.1 undecidable manual P 207 240.7812 141 0.39 45
IV.SCIAR.HNE. 2020-10-27T09:49:48.72 0.1 undecidable manual P 215 246.3645 140 -0.28 43
IV.CSLB.HHZ. 2020-10-27T09:49:47.31 0.1 undecidable manual P 209 232.7892 142 -0.63 43
IV.MTTG.HHZ. 2020-10-27T09:49:45.40 0.1 undecidable manual P 171 199.3449 146 -0.09 62
IV.MUCR.HHE. 2020-10-27T09:49:45.21 0.3 undecidable manual P 192 196.9584 146 -0.12 47
IV.MSFR.HHZ. 2020-10-27T09:49:45.97 0.1 undecidable manual P 199 204.3399 145 0.13 60
IV.SOI.EHZ. 2020-10-27T09:49:44.97 0.1 negative manual P 162 198.8454 146 -0.49 57
IV.IVUG.HHZ. 2020-10-27T09:49:43.92 0.3 undecidable manual P 192 156.621 152 1.16 40
MN.CEL.HHZ. 2020-10-27T09:49:43.03 0.1 undecidable manual P 164 174.9915 150 -0.85 56
IV.IFIL.HHN. 2020-10-27T09:49:43.73 0.6 undecidable manual P 206 150.3384 153 1.32 25
IV.MPNC.HHN. 2020-10-27T09:49:43.71 0.3 undecidable manual P 180 181.1853 149 -0.56 46
IV.NOCI.HHZ. 2020-10-27T09:49:43.99 0.1 negative manual P 52 183.3831 148 -0.43 63
IV.FERC.HNN. 2020-10-27T09:49:43.56 0.1 undecidable manual P 155 161.7159 151 0.49 69
IV.IVPL.HNE. 2020-10-27T09:49:43.92 0.6 undecidable manual P 192 158.9187 152 1.03 28
IV.MILZ.HHN. 2020-10-27T09:49:43.41 0.3 undecidable manual P 183 167.61 151 -0.01 56
IV.PLAC.HHZ. 2020-10-27T09:49:43.46 0.3 undecidable manual P 147 174.8916 150 -0.41 49
XK.SELL.HHZ. 2020-10-27T09:49:42.10 0.1 negative manual P 128 140.8479 155 0.21 79
IV.SERS.HHZ. 2020-10-27T09:49:42.16 0.1 negative manual P 125 141.4473 155 0.24 79
IV.MSRU.HHZ. 2020-10-27T09:49:42.91 0.6 negative manual P 175 168.7089 150 -0.58 32
IV.AMUR.HHZ. 2020-10-27T09:49:42.63 0.1 undecidable manual P 40 164.0136 151 -0.57 67
MN.TIP.HHZ. 2020-10-27T09:49:42.01 0.1 negative manual P 118 137.862 155 0.28 79
IV.MRVN.HHZ. 2020-10-27T09:49:42.13 1.0 undecidable manual P 26 159.1185 152 -0.78 16
IV.LADO.EHZ. 2020-10-27T09:49:42.48 0.6 negative manual P 111 150.0387 153 0.09 40
IV.GRI.EHN. 2020-10-27T09:49:42.38 0.1 undecidable manual P 139 140.5482 155 0.51 74
IV.PIPA.HHZ. 2020-10-27T09:49:41.60 0.1 negative manual P 104 129.5703 157 0.29 80
GE.MATE.HHN. 2020-10-27T09:49:41.58 0.1 undecidable manual P 50 150.0387 153 -0.81 64
IV.JOPP.HHZ. 2020-10-27T09:49:41.16 0.1 negative manual P 160 138.0618 155 -0.58 72
IV.CELI.HHZ. 2020-10-27T09:49:41.15 0.1 negative manual P 112 107.6145 160 0.85 70
IV.MCRV.HHN. 2020-10-27T09:49:40.44 0.6 undecidable manual P 352 112.2987 159 -0.06 43
IV.ORI.HHZ. 2020-10-27T09:49:40.33 0.1 negative manual P 72 98.4237 162 0.4 83
IX.COL3.HHE.02 2020-10-27T09:49:40.01 0.3 undecidable manual P 359 100.7214 161 -0.01 67
IX.CMP3.HNE.02 2020-10-27T09:49:40.08 0.3 undecidable manual P 347 99.4227 162 0.11 66
IV.TDS.HHZ. 2020-10-27T09:49:40.19 0.3 undecidable manual P 99 85.4478 164 0.74 57
IV.CRAC.EHN. 2020-10-27T09:49:40.27 0.3 undecidable manual P 54 113.8971 159 -0.3 62
IX.PGN3.HHN.02 2020-10-27T09:49:39.68 0.1 undecidable manual P 23 95.8263 162 -0.15 88
IV.SPS2.HHZ. 2020-10-27T09:49:39.85 1.0 undecidable manual P 122 100.6215 161 -0.16 22
IV.CAR1.HHZ. 2020-10-27T09:49:39.25 0.1 negative manual P 128 94.1391 163 -0.51 81
IV.SGO.HHE. 2020-10-27T09:49:39.52 0.1 undecidable manual P 358 86.6466 164 0.02 92
IV.SCHR.EHN. 2020-10-27T09:49:39.58 0.3 undecidable manual P 53 77.367 165 0.39 65
IV.SLCN.HNZ. 2020-10-27T09:49:39.06 0.6 undecidable manual P 20 71.8725 166 0.03 47
IV.MCEL.HHZ. 2020-10-27T09:49:39.62 0.1 negative manual P 32 71.6727 167 0.6 82
IV.PTRP.HHZ. 2020-10-27T09:49:39.77 0.3 undecidable manual P 36 102.12 161 -0.31 63
IX.SRN3.HNE.02 2020-10-27T09:49:39.39 0.1 negative manual P 7 78.9654 165 0.15 91
MN.CUC.HHZ. 2020-10-27T09:49:38.21 0.6 undecidable manual P 59 46.3203 171 -0.2 48
IV.MGR.HHZ. 2020-10-27T09:49:38.34 0.1 undecidable manual P 24 43.4232 172 -0.01 100
IV.GRIS.HNE. 2020-10-27T09:49:38.16 0.1 negative manual P 96 43.2234 172 -0.19 96
IV.BULG.HHN. 2020-10-27T09:49:38.42 0.1 negative manual P 4 33.2445 174 0.23 97
IV.SIRI.HHZ. 2020-10-27T09:49:38.75 0.3 negative manual P 44 62.7927 168 -0.03 72
IV.MMN.HHE. 2020-10-27T09:49:38.58 0.1 undecidable manual P 77 56.0994 169 -0.04 97
IV.CET2.HHZ. 2020-10-27T09:49:38.62 0.3 undecidable manual P 118 58.7967 169 -0.06 72
IV.CMPR.HHZ. 2020-10-27T09:49:38.64 0.6 negative manual P 356 59.8956 169 -0.06 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HNN. ML:3.1 0.00012699874 0.3008 AML other m 2020-10-27T09:49:40.45
IV.SIRI.HHN. ML:3.1 0.000134046715 0.2816 AML other m 2020-10-27T09:49:40.44
MN.CUC.HHN. ML:2.9 0.00008474999999999999 0.72 AML other m 2020-10-27T09:49:40.04
IV.SIRI.HHE. ML:3.1 0.0001503937 0.32 AML other m 2020-10-27T09:49:42.24
IV.SIRI.HNE. ML:3.2 0.0001534191 0.32 AML other m 2020-10-27T09:49:42.24
IV.LADO.EHE. ML:3.7 0.00044883280000000003 0.4992 AML other m 2020-10-27T09:49:44.34
IV.LADO.EHN. ML:3.6 0.0003663693 0.1984 AML other m 2020-10-27T09:49:44.76
IV.CMPR.HHN. ML:2.8 0.00007741321500000001 1.7984 AML other m 2020-10-27T09:50:04.85
MN.CUC.HNN. ML:3.1 0.00013783915 2.9952 AML other m 2020-10-27T09:50:08.42
MN.CUC.HHE. ML:3.0 0.00012213615 0.576 AML other m 2020-10-27T09:50:08.96
IV.CET2.HHN. ML:3.5 0.0003322502 2.1952 AML other m 2020-10-27T09:50:09.68
IV.CET2.HHE. ML:3.4 0.0002447574 0.896 AML other m 2020-10-27T09:50:09.69
IV.CAR1.HHN. ML:3.4 0.00025126175 0.7424 AML other m 2020-10-27T09:50:09.88
IV.CMPR.HHE. ML:2.8 0.00007479013500000001 0.8832 AML other m 2020-10-27T09:50:10.31
IV.MCEL.HHN. ML:3.0 0.00010166108500000001 1.8624 AML other m 2020-10-27T09:50:11.17
IV.MCEL.HHE. ML:3.0 0.00010480201 1.1776 AML other m 2020-10-27T09:50:11.55
IV.CAR1.HNN. ML:3.5 0.00029884455 0.8 AML other m 2020-10-27T09:50:12.69
IV.CAR1.HNE. ML:3.4 0.00027244125 0.6592 AML other m 2020-10-27T09:50:12.68
IV.CAR1.HHE. ML:3.5 0.00031942075000000004 0.48 AML other m 2020-10-27T09:50:12.69
IV.TDS.HHE. ML:2.9 0.00007304972000000001 1.376 AML other m 2020-10-27T09:50:13.01
IV.TDS.HHN. ML:2.8 0.00006659946 2.3552 AML other m 2020-10-27T09:50:14.69
IV.JOPP.HHE. ML:3.5 0.00030088550000000004 1.344 AML other m 2020-10-27T09:50:13.65
IV.JOPP.HHN. ML:3.5 0.0002713548 0.4032 AML other m 2020-10-27T09:50:14.18
IV.CELI.HNE. ML:3.2 0.0001386083 0.4992 AML other m 2020-10-27T09:50:14.29
IV.CELI.HHN. ML:3.2 0.0001425 1.02 AML other m 2020-10-27T09:50:14.64
MN.TIP.HHN. ML:2.9 0.00008190623 0.4224 AML other m 2020-10-27T09:50:15.53
IV.SERS.HHE. ML:3.2 0.00012981181 0.32 AML other m 2020-10-27T09:50:15.97
IV.SERS.HHN. ML:3.4 0.00021343435 0.3584 AML other m 2020-10-27T09:50:15.86
IV.SERS.HNE. ML:3.4 0.00021118599999999998 0.3584 AML other m 2020-10-27T09:50:15.87
IV.SPS2.HHN. ML:3.0 0.00009773420999999998 0.32 AML other m 2020-10-27T09:50:16.07
IV.AMUR.HHE. ML:3.0 0.00008732197999999999 0.7232 AML other m 2020-10-27T09:50:16.28
IV.SERS.HNN. ML:3.2 0.0001607515 1.184 AML other m 2020-10-27T09:50:15.97
IV.AMUR.HHN. ML:2.7 0.000044888810000000004 1.6256 AML other m 2020-10-27T09:50:16.02
IV.CELI.HNN. ML:3.2 0.00015060408 0.544 AML other m 2020-10-27T09:50:16.02
IV.SPS2.HHE. ML:2.7 0.000051594965 1.0816 AML other m 2020-10-27T09:50:16.23
IV.CELI.HHE. ML:3.2 0.00014540320000000002 0.6016 AML other m 2020-10-27T09:50:16.89
MN.TIP.HNN. ML:3.2 0.0001346122 1.696 AML other m 2020-10-27T09:50:17.33
IV.NOCI.HHE. ML:2.9 0.000059890765 0.4416 AML other m 2020-10-27T09:50:17.75
MN.TIP.HHE. ML:3.1 0.00010387046499999999 3.3216 AML other m 2020-10-27T09:50:16.20
IV.NOCI.HHN. ML:3.3 0.00014687585 0.7552 AML other m 2020-10-27T09:50:18.06
IV.MSRU.HHN. ML:3.6 0.0003446152 0.8832 AML other m 2020-10-27T09:50:18.43
IV.MSRU.HHE. ML:3.6 0.0003629553 1.056 AML other m 2020-10-27T09:50:18.10
IV.PLAC.HNE. ML:3.4 0.00018248245000000002 0.384 AML other m 2020-10-27T09:50:19.16
IV.PLAC.HHN. ML:3.4 0.00018748149999999998 0.384 AML other m 2020-10-27T09:50:18.97
IV.PLAC.HNN. ML:3.5 0.00022959455 0.4416 AML other m 2020-10-27T09:50:20.54
IV.PLAC.HHE. ML:3.5 0.00022927819999999998 0.416 AML other m 2020-10-27T09:50:20.54
IV.SOI.EHE. ML:3.4 0.00017526734999999998 0.4352 AML other m 2020-10-27T09:50:21.50
MN.CEL.HHN. ML:3.3 0.00016734965000000002 0.3968 AML other m 2020-10-27T09:50:22.43
MN.CEL.HNE. ML:3.4 0.00021616924999999997 0.4224 AML other m 2020-10-27T09:50:22.43
MN.CEL.HNN. ML:3.4 0.0001979474 0.4224 AML other m 2020-10-27T09:50:22.43
MN.CEL.HHE. ML:3.4 0.0002209805 0.4224 AML other m 2020-10-27T09:50:22.21
IV.SOI.EHN. ML:3.3 0.00015356305 0.4992 AML other m 2020-10-27T09:50:23.84
IV.MTTG.HHE. ML:3.7 0.000360301 0.5632 AML other m 2020-10-27T09:50:24.14
IV.MTTG.HHN. ML:3.7 0.00033963535 0.5824 AML other m 2020-10-27T09:50:26.75
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