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) 39.78, 15.348 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 seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap *

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap *

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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
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
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
Rapid automatic
Auto1
ML 3.3 2020-10-27
09:49:02
39.6913 15.3815 274 2020-10-27
09:50:24
Sistema Automatico Earthworm-10 84176391
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
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 Takeoff_angle Residual Weight
MN.CEL.HHZ. 2020-10-27T09:50:17.10 0.6 undecidable manual S 164 1.5765 150 -0.43 33
IV.PLAC.HHZ. 2020-10-27T09:50:17.37 0.6 undecidable manual S 147 1.5756 150 -0.15 35
IV.MSRU.HHZ. 2020-10-27T09:50:15.73 0.6 undecidable manual S 175 1.5199 150 -1.12 25
XK.SELL.HHZ. 2020-10-27T09:50:14.25 0.6 undecidable manual S 128 1.2689 155 0.16 40
MN.TIP.HHZ. 2020-10-27T09:50:13.96 0.6 undecidable manual S 118 1.242 155 0.14 40
IV.CAR1.HHZ. 2020-10-27T09:50:10.47 0.6 undecidable manual S 128 0.8481 163 0.06 45
IV.CET2.HHZ. 2020-10-27T09:50:08.55 0.6 undecidable manual S 118 0.5297 169 0.02 48
IV.GRIS.HNE. 2020-10-27T09:50:07.90 0.6 undecidable manual S 96 0.3894 172 -0.07 50
IV.MPG.HHE. 2020-10-27T09:49:49.11 0.3 undecidable manual P 224 2.2366 140 -0.04 34
IV.SCIAR.HNE. 2020-10-27T09:49:48.72 0.1 undecidable manual P 215 2.2195 140 -0.28 43
IV.PETRA.HHN. 2020-10-27T09:49:48.95 0.1 undecidable manual P 207 2.1692 141 0.39 45
IV.CSLB.HHZ. 2020-10-27T09:49:47.31 0.1 undecidable manual P 209 2.0972 142 -0.63 43
IV.MTTG.HHZ. 2020-10-27T09:49:45.40 0.1 undecidable manual P 171 1.7959 146 -0.09 62
IV.MUCR.HHE. 2020-10-27T09:49:45.21 0.3 undecidable manual P 192 1.7744 146 -0.12 47
IV.MSFR.HHZ. 2020-10-27T09:49:45.97 0.1 undecidable manual P 199 1.8409 145 0.13 60
IV.SOI.EHZ. 2020-10-27T09:49:44.97 0.1 negative manual P 162 1.7914 146 -0.49 57
IV.PLAC.HHZ. 2020-10-27T09:49:43.46 0.3 undecidable manual P 147 1.5756 150 -0.41 49
IV.IVUG.HHZ. 2020-10-27T09:49:43.92 0.3 undecidable manual P 192 1.411 152 1.16 40
MN.CEL.HHZ. 2020-10-27T09:49:43.03 0.1 undecidable manual P 164 1.5765 150 -0.85 56
IV.IFIL.HHN. 2020-10-27T09:49:43.73 0.6 undecidable manual P 206 1.3544 153 1.32 25
IV.MPNC.HHN. 2020-10-27T09:49:43.71 0.3 undecidable manual P 180 1.6323 149 -0.56 46
IV.NOCI.HHZ. 2020-10-27T09:49:43.99 0.1 negative manual P 52 1.6521 148 -0.43 63
IV.FERC.HNN. 2020-10-27T09:49:43.56 0.1 undecidable manual P 155 1.4569 151 0.49 69
IV.IVPL.HNE. 2020-10-27T09:49:43.92 0.6 undecidable manual P 192 1.4317 152 1.03 28
IV.MILZ.HHN. 2020-10-27T09:49:43.41 0.3 undecidable manual P 183 1.51 151 -0.01 56
MN.TIP.HHZ. 2020-10-27T09:49:42.01 0.1 negative manual P 118 1.242 155 0.28 79
IV.MRVN.HHZ. 2020-10-27T09:49:42.13 1.0 undecidable manual P 26 1.4335 152 -0.78 16
IV.LADO.EHZ. 2020-10-27T09:49:42.48 0.6 negative manual P 111 1.3517 153 0.09 40
IV.GRI.EHN. 2020-10-27T09:49:42.38 0.1 undecidable manual P 139 1.2662 155 0.51 74
XK.SELL.HHZ. 2020-10-27T09:49:42.10 0.1 negative manual P 128 1.2689 155 0.21 79
IV.SERS.HHZ. 2020-10-27T09:49:42.16 0.1 negative manual P 125 1.2743 155 0.24 79
IV.MSRU.HHZ. 2020-10-27T09:49:42.91 0.6 negative manual P 175 1.5199 150 -0.58 32
IV.AMUR.HHZ. 2020-10-27T09:49:42.63 0.1 undecidable manual P 40 1.4776 151 -0.57 67
IV.CELI.HHZ. 2020-10-27T09:49:41.15 0.1 negative manual P 112 0.9695 160 0.85 70
IV.PIPA.HHZ. 2020-10-27T09:49:41.60 0.1 negative manual P 104 1.1673 157 0.29 80
GE.MATE.HHN. 2020-10-27T09:49:41.58 0.1 undecidable manual P 50 1.3517 153 -0.81 64
IV.JOPP.HHZ. 2020-10-27T09:49:41.16 0.1 negative manual P 160 1.2438 155 -0.58 72
IV.CRAC.EHN. 2020-10-27T09:49:40.27 0.3 undecidable manual P 54 1.0261 159 -0.3 62
IV.MCRV.HHN. 2020-10-27T09:49:40.44 0.6 undecidable manual P 352 1.0117 159 -0.06 43
IV.ORI.HHZ. 2020-10-27T09:49:40.33 0.1 negative manual P 72 0.8867 162 0.4 83
IX.COL3.HHE.02 2020-10-27T09:49:40.01 0.3 undecidable manual P 359 0.9074 161 -0.01 67
IV.TDS.HHZ. 2020-10-27T09:49:40.19 0.3 undecidable manual P 99 0.7698 164 0.74 57
IX.CMP3.HNE.02 2020-10-27T09:49:40.08 0.3 undecidable manual P 347 0.8957 162 0.11 66
IV.PTRP.HHZ. 2020-10-27T09:49:39.77 0.3 undecidable manual P 36 0.92 161 -0.31 63
IX.SRN3.HNE.02 2020-10-27T09:49:39.39 0.1 negative manual P 7 0.7114 165 0.15 91
IV.SPS2.HHZ. 2020-10-27T09:49:39.85 1.0 undecidable manual P 122 0.9065 161 -0.16 22
IX.PGN3.HHN.02 2020-10-27T09:49:39.68 0.1 undecidable manual P 23 0.8633 162 -0.15 88
IV.CAR1.HHZ. 2020-10-27T09:49:39.25 0.1 negative manual P 128 0.8481 163 -0.51 81
IV.SGO.HHE. 2020-10-27T09:49:39.52 0.1 undecidable manual P 358 0.7806 164 0.02 92
IV.SCHR.EHN. 2020-10-27T09:49:39.58 0.3 undecidable manual P 53 0.697 165 0.39 65
IV.MCEL.HHZ. 2020-10-27T09:49:39.62 0.1 negative manual P 32 0.6457 167 0.6 82
IV.SLCN.HNZ. 2020-10-27T09:49:39.06 0.6 undecidable manual P 20 0.6475 166 0.03 47
IV.CMPR.HHZ. 2020-10-27T09:49:38.64 0.6 negative manual P 356 0.5396 169 -0.06 48
MN.CUC.HHZ. 2020-10-27T09:49:38.21 0.6 undecidable manual P 59 0.4173 171 -0.2 48
IV.MGR.HHZ. 2020-10-27T09:49:38.34 0.1 undecidable manual P 24 0.3912 172 -0.01 100
IV.SIRI.HHZ. 2020-10-27T09:49:38.75 0.3 negative manual P 44 0.5657 168 -0.03 72
IV.GRIS.HNE. 2020-10-27T09:49:38.16 0.1 negative manual P 96 0.3894 172 -0.19 96
IV.BULG.HHN. 2020-10-27T09:49:38.42 0.1 negative manual P 4 0.2995 174 0.23 97
IV.CET2.HHZ. 2020-10-27T09:49:38.62 0.3 undecidable manual P 118 0.5297 169 -0.06 72
IV.MMN.HHE. 2020-10-27T09:49:38.58 0.1 undecidable manual P 77 0.5054 169 -0.04 97
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 8.475E-5 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 0.0004488328 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 7.7413215E-5 1.7984 AML other m 2020-10-27T09:50:04.85
IV.NRCA.HHE. ML:0 0.0004055 0.16 AML other m 2020-10-27T09:50:07.23
IV.NRCA.HHN. ML:0 0.000156 1.02 AML other m 2020-10-27T09:50:07.21
MN.CUC.HNN. ML:3.1 0.00013783915 2.9952 AML other m 2020-10-27T09:50:08.42
MN.CUC.HHE. ML:3 0.00012213615 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 7.4790135E-5 0.8832 AML other m 2020-10-27T09:50:10.31
IV.MCEL.HHN. ML:3 0.000101661085 1.8624 AML other m 2020-10-27T09:50:11.17
IV.MCEL.HHE. ML:3 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 0.00031942075 0.48 AML other m 2020-10-27T09:50:12.69
IV.TDS.HHE. ML:2.9 7.304972E-5 1.376 AML other m 2020-10-27T09:50:13.01
IV.TDS.HHN. ML:2.8 6.659946E-5 2.3552 AML other m 2020-10-27T09:50:14.69
IV.JOPP.HHE. ML:3.5 0.0003008855 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 8.190623E-5 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 0.000211186 0.3584 AML other m 2020-10-27T09:50:15.87
IV.SPS2.HHN. ML:3 9.773421E-5 0.32 AML other m 2020-10-27T09:50:16.07
IV.AMUR.HHE. ML:3 8.732198E-5 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 4.488881E-5 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 5.1594965E-5 1.0816 AML other m 2020-10-27T09:50:16.23
IV.CELI.HHE. ML:3.2 0.0001454032 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 5.9890765E-5 0.4416 AML other m 2020-10-27T09:50:17.75
MN.TIP.HHE. ML:3.1 0.000103870465 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 0.00018248245 0.384 AML other m 2020-10-27T09:50:19.16
IV.PLAC.HHN. ML:3.4 0.0001874815 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 0.0002292782 0.416 AML other m 2020-10-27T09:50:20.54
IV.SOI.EHE. ML:3.4 0.00017526735 0.4352 AML other m 2020-10-27T09:50:21.50
MN.CEL.HHN. ML:3.3 0.00016734965 0.3968 AML other m 2020-10-27T09:50:22.43
MN.CEL.HNE. ML:3.4 0.00021616925 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 *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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