Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 11-11-2021 and time 10:28:23 (Italy) in region 4 km SW Casalbuono (SA)

A magnitude ML 0.9 earthquake occured in region: 4 km SW Casalbuono (SA), on

  • 11-11-2021 09:28:23 (UTC)
  • 11-11-2021 10:28:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.1980, 15.6470 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Casalbuono SA 4 1194 1194
Casaletto Spartano SA 6 1420 2614
Tortorella SA 7 523 3137
Buonabitacolo SA 8 2549 5686
Caselle in Pittari SA 9 1956 7642
Sanza SA 10 2608 10250
Torraca SA 10 1263 11513
Montesano sulla Marcellana SA 10 6704 18217
Morigerati SA 10 665 18882
Vibonati SA 12 3293 22175
Lagonegro PZ 13 5584 27759
Santa Marina SA 14 3243 31002
Sapri SA 14 6770 37772
Ispani SA 14 1026 38798
Padula SA 16 5368 44166
Rivello PZ 16 2767 46933
Torre Orsaia SA 17 2118 49051
Sassano SA 18 5013 54064
Monte San Giacomo SA 18 1572 55636
Tramutola PZ 18 3089 58725
Rofrano SA 19 1576 60301
Alfano SA 19 1023 61324
Nemoli PZ 20 1495 62819
Moliterno PZ 20 4062 66881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km S of Potenza (67122 inhabitants)
72 Km SE of Battipaglia (50786 inhabitants)
92 Km SE of Salerno (135261 inhabitants)
96 Km SW of Matera (60436 inhabitants)
97 Km SE of Cava de' Tirreni (53659 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
Reviewed
Rev100 		ML 0.9 2021-11-11
09:28:23		 40.1983 15.6467 10 2021-11-11
10:08:32		 Sala Sismica INGV-Roma 97394651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-11 09:28:23 ± 0.13
Latitude 40.1983 ± 0.0072
Longitude 15.6467 ± 0.0071
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97394651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 827
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28778
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97394651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-11 10:08:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2021-11-11T09:30:04.58 3.0 undecidable manual Sn -0.54 0
IV.ARCI.HHZ. 2021-11-11T09:29:49.65 3.0 undecidable manual Sg 1.62 0
IV.SENI.HNZ. 2021-11-11T09:29:43.07 3.0 undecidable manual Sg 1.11 0
IV.JOPP.HHZ. 2021-11-11T09:29:24.38 3.0 undecidable manual Sg 3.9 0
IV.MC2.EHZ. 2021-11-11T09:29:22.01 3.0 undecidable manual Sn -4.16 0
IV.ERC.EHZ. 2021-11-11T09:29:14.83 3.0 undecidable manual Pg 8.74 0
IV.RIBO.EHZ.01 2021-11-11T09:29:06.42 3.0 undecidable manual Pn -3.13 0
IV.SPS2.HHZ. 2021-11-11T09:29:03.75 3.0 undecidable manual Sn -3.75 0
IV.FRON.EHZ. 2021-11-11T09:29:02.51 3.0 negative manual Pn 0.17 0
IT.FOPC.HGZ. 2021-11-11T09:29:00.86 3.0 negative manual Pg 4.16 0
IV.NARO.HHZ. 2021-11-11T09:28:57.66 3.0 undecidable manual Pn -6.57 0
IV.IFIL.HHZ. 2021-11-11T09:28:51.62 3.0 undecidable manual Pg 1.2 0
IV.SELL.HHZ. 2021-11-11T09:28:50.16 3.0 negative manual Pg 2.58 0
IV.LPEL.HHZ. 2021-11-11T09:28:49.46 3.0 undecidable manual S -9.05 0
IV.CMPR.HNZ. 2021-11-11T09:28:34.40 0.6 undecidable manual S 295 31.9458 50 -0.07 48
IV.PZUN.HHZ. 2021-11-11T09:28:34.81 3.0 undecidable manual S 5.79 0
IV.ORI.HHZ. 2021-11-11T09:28:30.86 3.0 undecidable manual P -3.84 0
IV.SIRI.HHZ. 2021-11-11T09:28:30.75 0.3 undecidable manual S 95 18.7701 117 0.27 71
IV.MCEL.HHZ. 2021-11-11T09:28:30.44 0.1 undecidable manual S 43 19.2696 117 -0.18 97
IV.CMPR.HNZ. 2021-11-11T09:28:29.67 0.6 undecidable manual P 295 31.9458 50 -0.01 49
IV.MTSN.HHZ. 2021-11-11T09:28:28.32 0.1 undecidable manual S 50 11.6772 130 -0.08 100
IV.SLCN.HHE. 2021-11-11T09:28:28.27 0.3 undecidable manual P 357 21.2676 114 0.43 68
IV.MGR.HHZ. 2021-11-11T09:28:28.10 0.3 undecidable manual S 230 10.3785 133 0.03 76
IV.MCEL.HHZ. 2021-11-11T09:28:27.44 0.6 negative manual P 43 19.2696 117 -0.02 50
IV.MTSN.HHZ. 2021-11-11T09:28:26.22 0.6 positive manual P 50 11.6772 130 0.04 50
IV.SIRI.HHZ. 2021-11-11T09:28:26.88 1.0 negative manual P 95 18.7701 117 -0.51 23
IV.MGR.HHZ. 2021-11-11T09:28:25.88 0.1 positive manual P 230 10.3785 133 -0.11 100
OT.OT17.EHZ. 2021-11-11T09:28:24.15 3.0 negative manual P -3.32 0
IV.SGTA.HHZ. 2021-11-11T09:28:17.62 3.0 positive manual P 1.46 0
IX.CMP3.EHZ.02 2021-11-11T09:28:12.18 3.0 undecidable manual P -3.98 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGR.HHN. ML:0.6 0.0000515291 0.2816 AML other m 2021-11-11T09:28:29.84
IV.MTSN.HHN. ML:1.4 0.00028050000000000004 0.32 AML other m 2021-11-11T09:28:28.60
IV.MTSN.HHE. ML:1.3 0.00022700000000000002 0.28 AML other m 2021-11-11T09:28:28.73
IV.MGR.HHE. ML:0.6 0.000045705759999999996 0.1984 AML other m 2021-11-11T09:28:28.76
IV.MTSN.HNE. ML:1.3 0.000233057 0.2688 AML other m 2021-11-11T09:28:28.72
IV.MTSN.HNN. ML:1.3 0.0002521562 0.32 AML other m 2021-11-11T09:28:28.60
IV.SIRI.HHE. ML:0.7 0.000042049795 0.2816 AML other m 2021-11-11T09:28:31.51
IV.SIRI.HHN. ML:0.6 0.000033942547000000004 0.2368 AML other m 2021-11-11T09:28:32.42
IV.MCEL.HNE. ML:1.1 0.000100074995 0.2368 AML other m 2021-11-11T09:28:31.04
IV.MCEL.HNN. ML:1.0 0.00008412079999999999 0.4416 AML other m 2021-11-11T09:28:32.29
IV.MCEL.HHE. ML:0.5 0.00002658358 0.1984 AML other m 2021-11-11T09:28:30.67
IV.MCEL.HHN. ML:0.7 0.00004129975 0.3008 AML other m 2021-11-11T09:28:30.89
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