Earthquake with magnitude of ML 0.9 on date 15-11-2021 and time 11:53:49 (Italy) in region 3 km E Santomenna (SA)

A magnitude ML 0.9 earthquake occured in region: 3 km E Santomenna (SA), on

  • 15-11-2021 10:53:49 (UTC)
  • 15-11-2021 11:53:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.797, 15.351 at 3 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santomenna SA 3 443 443
Castelnuovo di Conza SA 4 619 1062
Laviano SA 4 1438 2500
Sant'Andrea di Conza AV 6 1539 4039
Pescopagano PZ 6 1910 5949
Conza della Campania AV 7 1373 7322
Castelgrande PZ 7 943 8265
Colliano SA 9 3638 11903
Valva SA 9 1643 13546
Teora AV 10 1537 15083
Caposele AV 11 3483 18566
Calabritto AV 11 2391 20957
Cairano AV 11 326 21283
Muro Lucano PZ 12 5497 26780
Senerchia AV 14 842 27622
Rapone PZ 14 990 28612
Calitri AV 14 4666 33278
Oliveto Citra SA 15 3802 37080
Andretta AV 15 1927 39007
Palomonte SA 16 3985 42992
San Gregorio Magno SA 16 4286 47278
San Fele PZ 16 3004 50282
Bella PZ 16 5171 55453
Lioni AV 16 6201 61654
Morra De Sanctis AV 17 1297 62951
Ruvo del Monte PZ 17 1083 64034
Ricigliano SA 18 1144 65178
Buccino SA 18 5047 70225
Contursi Terme SA 19 3394 73619
Romagnano al Monte SA 20 368 73987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Battipaglia (50786 inhabitants)
42 Km W of Potenza (67122 inhabitants)
49 Km E of Avellino (54857 inhabitants)
52 Km E of Salerno (135261 inhabitants)
55 Km E of Cava de' Tirreni (53659 inhabitants)
61 Km SE of Benevento (60091 inhabitants)
70 Km E of Scafati (50787 inhabitants)
70 Km SW of Cerignola (58396 inhabitants)
74 Km E of Castellammare di Stabia (66466 inhabitants)
76 Km S of Foggia (151991 inhabitants)
83 Km E of Torre del Greco (86275 inhabitants)
84 Km E of Portici (55274 inhabitants)
84 Km E of Acerra (59573 inhabitants)
85 Km E of Ercolano (53709 inhabitants)
89 Km E of Afragola (65057 inhabitants)
90 Km E of Casoria (77642 inhabitants)
91 Km E of Caserta (76326 inhabitants)
93 Km E of Napoli (974074 inhabitants)
93 Km SW of Andria (100440 inhabitants)
97 Km SW of Barletta (94814 inhabitants)
98 Km E of Giugliano in Campania (122974 inhabitants)
98 Km E of Marano di Napoli (59874 inhabitants)
98 Km E of Aversa (53047 inhabitants)
99 Km S of San Severo (53905 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2021-11-15
10:53:49
40.7968 15.3512 3 2021-11-15
10:59:55
Sala Sismica INGV-Roma 97477971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-15 10:53:49 ± 0.54
Latitude 40.7968 ± 0.0072
Longitude 15.3512 ± 0.0095
Depth (km) 3 ± 9 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97477971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 298
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 341
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.16727
Number of stations at which the event was observed 7
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 8
Type of magnitude ML
Reference to an origin 97477971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-15 10:59:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT17.EHZ. 2021-11-15T10:54:01.49 3.0 negative manual P 0 0
IV.SNAL.HHN. 2021-11-15T10:53:56.18 0.6 undecidable manual S 320 0.1673 100 0.25 50
IV.MCRV.HHZ. 2021-11-15T10:53:55.16 0.3 undecidable manual S 264 0.1394 102 0.3 75
IX.SNR3.EHZ.02 2021-11-15T10:53:54.63 0.3 undecidable manual S 243 0.1349 102 -0.06 79
IV.MRLC.HHZ. 2021-11-15T10:53:54.15 0.3 undecidable manual S 111 0.1115 105 0.31 75
IX.COL3.HHZ.02 2021-11-15T10:53:53.96 0.3 undecidable manual S 188 0.1106 105 0.16 78
IV.SNAL.HHN. 2021-11-15T10:53:53.17 0.3 undecidable manual P 320 0.1673 100 0.01 79
IV.MCRV.HHZ. 2021-11-15T10:53:52.23 0.1 undecidable manual P 264 0.1394 102 -0.31 100
IX.CLT3.EHN.02 2021-11-15T10:53:52.82 0.1 undecidable manual P 21 0.1133 104 0.83 84
IX.SNR3.EHZ.02 2021-11-15T10:53:52.49 0.6 negative manual P 243 0.1349 102 0.04 53
IX.CLT3.EHN.02 2021-11-15T10:53:52.96 0.3 undecidable manual S 21 0.1133 104 -0.93 61
IX.COL3.HHZ.02 2021-11-15T10:53:51.56 0.1 undecidable manual P 188 0.1106 105 -0.38 99
IV.MRLC.HHZ. 2021-11-15T10:53:51.76 0.3 undecidable manual P 111 0.1115 105 -0.19 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HHE. ML:0.6 5.14E-5 0.46 AML other m 2021-11-15T10:53:54.74
IV.MRLC.HHN. ML:0.6 6.165E-5 1.44 AML other m 2021-11-15T10:53:55.72
IV.MCRV.HHE. ML:0.9 7.755E-5 0.7 AML other m 2021-11-15T10:53:55.49
IV.MCRV.HHN. ML:0.8 7.66E-5 0.88 AML other m 2021-11-15T10:53:56.47
IX.SNR3.EHE.02 ML:0.8 7.66E-5 0.76 AML other m 2021-11-15T10:53:57.62
IX.SNR3.EHN.02 ML:0.9 9.83E-5 0.58 AML other m 2021-11-15T10:53:58.29
IX.COL3.HHE.02 ML:1.3 0.00028338635 0.16 AML other m 2021-11-15T10:53:55.18
IX.COL3.HHN.02 ML:1.2 0.00023219025 0.9472 AML other m 2021-11-15T10:53:54.26
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