Earthquake with magnitude of ML 1.1 on date 23-08-2021 and time 05:08:27 (Italy) in region 3 km SW Casalbuono (SA)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Casalbuono (SA), on

  • 23-08-2021 03:08:27 (UTC)
  • 23-08-2021 05:08:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1960, 15.6660 at 11 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Casalbuono SA 3 1194 1194
Casaletto Spartano SA 6 1420 2614
Tortorella SA 8 523 3137
Buonabitacolo SA 9 2549 5686
Montesano sulla Marcellana SA 10 6704 12390
Torraca SA 10 1263 13653
Caselle in Pittari SA 11 1956 15609
Sanza SA 11 2608 18217
Morigerati SA 11 665 18882
Lagonegro PZ 12 5584 24466
Vibonati SA 13 3293 27759
Sapri SA 14 6770 34529
Santa Marina SA 15 3243 37772
Ispani SA 15 1026 38798
Rivello PZ 15 2767 41565
Padula SA 16 5368 46933
Tramutola PZ 18 3089 50022
Torre Orsaia SA 18 2118 52140
Moliterno PZ 18 4062 56202
Sassano SA 18 5013 61215
Nemoli PZ 18 1495 62710
Monte San Giacomo SA 19 1572 64282
Sarconi PZ 20 1404 65686

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km S of Potenza (67122 inhabitants)
74 Km SE of Battipaglia (50786 inhabitants)
94 Km SE of Salerno (135261 inhabitants)
95 Km SW of Matera (60436 inhabitants)
99 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
Bulletin
Rev1000
ML 1.1 2021-08-23
03:08:27
40.196 15.6655 11 2021-12-29
11:12:52
Bollettino Sismico Italiano INGV 97945241
Reviewed
Rev100
ML 1.1 2021-08-23
03:08:27
40.1985 15.6643 11 2021-08-23
03:16:02
Sala Sismica INGV-Roma 94522461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-23 03:08:27 ± 0.07
Latitude 40.1960 ± 0.0045
Longitude 15.6655 ± 0.0047
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97945241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 519
Semi-minor axis of confidence ellipse (meter) 407
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47754
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 97945241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-29 15:49:27

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 94522461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-23 03:16:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCIV.CHZ. 2021-08-23T03:10:15.10 3.0 undecidable manual Sn -7.42 0
IV.FIR.HHZ. 2021-08-23T03:09:55.02 3.0 undecidable manual Pg 15.98 0
CR.STON.BHZ. 2021-08-23T03:09:51.88 3.0 undecidable manual Sn -1.73 0
IV.MMGO.HHZ. 2021-08-23T03:09:51.03 3.0 undecidable manual Sg 6.1 0
IV.MURB.HHZ. 2021-08-23T03:09:28.58 3.0 undecidable manual Pn 3.13 0
IV.HPAC.HHZ. 2021-08-23T03:09:10.16 3.0 undecidable manual Pg 7.08 0
IX.NSC3.EHZ.02 2021-08-23T03:09:05.60 3.0 undecidable manual Sg 0.33 0
IV.EFIU.HHZ. 2021-08-23T03:08:47.68 3.0 positive manual Pn -0.82 0
IV.SCHR.EHZ. 2021-08-23T03:08:39.11 0.6 undecidable manual S 89 34.743 50 -0.25 45
IV.CMPR.HHE. 2021-08-23T03:08:39.01 0.3 undecidable manual S 294 33.5442 50 -0.03 72
MN.CUC.HHZ. 2021-08-23T03:08:37.01 0.6 undecidable manual S 150 25.752 50 0.05 49
IV.GRIS.HNE. 2021-08-23T03:08:37.67 0.3 undecidable manual P 162 53.0025 50 0.51 64
IV.CDRU.HHZ. 2021-08-23T03:08:35.56 0.3 undecidable manual P 317 44.622 50 -0.31 67
IV.MCEL.HHZ. 2021-08-23T03:08:34.84 0.6 undecidable manual S 39 18.3705 120 -0.01 50
IV.SCHR.EHZ. 2021-08-23T03:08:34.25 0.3 undecidable manual P 89 34.743 50 -0.1 71
IX.SRN3.HHE.02 2021-08-23T03:08:34.75 0.3 undecidable manual P 331 36.6411 50 0.11 72
IV.SIRI.HHZ. 2021-08-23T03:08:34.61 0.6 undecidable manual S 95 17.1717 122 0.12 49
IV.CMPR.HHE. 2021-08-23T03:08:33.97 0.3 undecidable manual P 294 33.5442 50 -0.19 70
IV.SLCN.HHZ. 2021-08-23T03:08:33.13 0.3 undecidable manual P 353 21.6672 116 0.8 59
IV.MTSN.HHE. 2021-08-23T03:08:32.57 0.3 undecidable manual S 43 10.6782 135 -0.14 75
MN.CUC.HHZ. 2021-08-23T03:08:32.97 0.3 undecidable manual P 150 25.752 50 0 74
IV.MGR.HHZ. 2021-08-23T03:08:32.73 0.3 undecidable manual S 236 11.4774 133 -0.18 75
IV.SIRI.HHZ. 2021-08-23T03:08:31.33 0.3 undecidable manual P 95 17.1717 122 -0.21 72
IV.MCEL.HHZ. 2021-08-23T03:08:31.72 0.1 undecidable manual P 39 18.3705 120 -0.03 100
IV.MGR.HHZ. 2021-08-23T03:08:30.65 0.3 undecidable manual P 236 11.4774 133 0.03 75
IV.MTSN.HHE. 2021-08-23T03:08:30.48 0.3 undecidable manual P 43 10.6782 135 -0.03 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CUC.HNE. ML:1.4 0.000136746925 0.52 AML other m 2021-08-23T03:08:32.70
IV.MGR.HHN. ML:1.0 0.00010135 0.64 AML other m 2021-08-23T03:08:32.97
IV.MGR.HNE. ML:1.1 0.000132050325 0.2592 AML other m 2021-08-23T03:08:33.57
IV.MGR.HHE. ML:1.1 0.00015099999999999998 0.26 AML other m 2021-08-23T03:08:33.57
IV.MCEL.HHE. ML:1.3 0.0001715 0.2 AML other m 2021-08-23T03:08:35.03
IV.MCEL.HHN. ML:0.9 0.00005755 0.24 AML other m 2021-08-23T03:08:36.81
IV.MCEL.HNE. ML:1.4 0.00019645135 1.6992 AML other m 2021-08-23T03:08:36.94
MN.CUC.HHN. ML:0.6 0.00002685836 0.24 AML other m 2021-08-23T03:08:37.56
IV.MCEL.HNN. ML:1.4 0.00017999999999999998 0.62 AML other m 2021-08-23T03:08:37.73
MN.CUC.HHE. ML:0.8 0.00003582814 0.2 AML other m 2021-08-23T03:08:38.31
IV.SLCN.HHE. ML:1.0 0.00007139999999999999 0.56 AML other m 2021-08-23T03:08:38.73
IV.SCHR.EHN. ML:0.7 0.000020850000000000002 0.1 AML other m 2021-08-23T03:08:39.20
IV.SLCN.HNE. ML:1.3 0.0001371763 0.3808 AML other m 2021-08-23T03:08:39.28
IV.SLCN.HNN. ML:1.6 0.00025115275 0.8 AML other m 2021-08-23T03:08:41.95
IV.SCHR.EHE. ML:0.7 0.000017627730000000003 1.6992 AML other m 2021-08-23T03:08:42.87
IV.SLCN.HHN. ML:0.9 0.00005185 0.34 AML other m 2021-08-23T03:08:43.10
IV.MGR.HNN. ML:1.1 0.000142299275 0.8496 AML other m 2021-08-23T03:08:47.46
MN.CUC.HNN. ML:1.4 0.0001242386 0.48 AML other m 2021-08-23T03:08:47.07
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