Earthquake with magnitude of ML 2.3 on date 04-11-2021 and time 06:06:02 (Italy) in region 3 km NW Valva (SA)

A magnitude ML 2.3 earthquake occured in region: 3 km NW Valva (SA), on

  • 04-11-2021 05:06:02 (UTC)
  • 04-11-2021 06:06:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.76, 15.253 at 11 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
Valva SA 3 1643 1643
Calabritto AV 4 2391 4034
Senerchia AV 4 842 4876
Colliano SA 5 3638 8514
Laviano SA 5 1438 9952
Caposele AV 7 3483 13435
Oliveto Citra SA 8 3802 17237
Santomenna SA 8 443 17680
Castelnuovo di Conza SA 9 619 18299
Teora AV 10 1537 19836
Palomonte SA 12 3985 23821
Contursi Terme SA 12 3394 27215
Conza della Campania AV 13 1373 28588
Sant'Andrea di Conza AV 14 1539 30127
Lioni AV 14 6201 36328
Pescopagano PZ 15 1910 38238
Castelgrande PZ 16 943 39181
Campagna SA 16 16703 55884
Acerno SA 16 2783 58667
San Gregorio Magno SA 17 4286 62953
Buccino SA 17 5047 68000
Bagnoli Irpino AV 17 3217 71217
Cairano AV 18 326 71543
Morra De Sanctis AV 18 1297 72840
Muro Lucano PZ 20 5497 78337
Sant'Angelo dei Lombardi AV 20 4250 82587
Nusco AV 20 4203 86790

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Battipaglia (50786 inhabitants)
42 Km E of Avellino (54857 inhabitants)
43 Km E of Salerno (135261 inhabitants)
47 Km E of Cava de' Tirreni (53659 inhabitants)
49 Km W of Potenza (67122 inhabitants)
57 Km SE of Benevento (60091 inhabitants)
61 Km E of Scafati (50787 inhabitants)
65 Km E of Castellammare di Stabia (66466 inhabitants)
75 Km E of Torre del Greco (86275 inhabitants)
76 Km E of Portici (55274 inhabitants)
77 Km E of Ercolano (53709 inhabitants)
77 Km E of Acerra (59573 inhabitants)
79 Km SW of Cerignola (58396 inhabitants)
81 Km E of Afragola (65057 inhabitants)
82 Km S of Foggia (151991 inhabitants)
83 Km E of Casoria (77642 inhabitants)
85 Km E of Napoli (974074 inhabitants)
85 Km E of Caserta (76326 inhabitants)
90 Km E of Giugliano in Campania (122974 inhabitants)
91 Km E of Marano di Napoli (59874 inhabitants)
91 Km E of Aversa (53047 inhabitants)
98 Km E of Pozzuoli (81661 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
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 2.3 2021-11-04
05:06:02
40.7597 15.253 11 2021-11-04
05:17:53
Sala Sismica INGV-Roma 97244831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-04 05:06:02 ± 0.12
Latitude 40.7597 ± 0.0081
Longitude 15.2530 ± 0.0095
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97244831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 795
Semi-minor axis of confidence ellipse (meter) 775
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.77342
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 97244831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-04 05:17:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2021-11-04T05:06:30.76 0.6 undecidable manual S 67 0.7734 50 3.23 3
IV.CMPR.HHE. 2021-11-04T05:06:18.11 0.3 undecidable manual S 175 0.4434 50 0.36 74
IV.MRVN.HHZ. 2021-11-04T05:06:16.99 1.0 undecidable manual P 67 0.7734 50 0.22 24
IX.SRN3.HHZ.02 2021-11-04T05:06:14.50 0.3 undecidable manual S 150 0.3148 50 0.55 73
IV.ACER.HHZ. 2021-11-04T05:06:12.16 1.0 undecidable manual P 87 0.5225 50 -0.33 23
IV.SGO.HHZ. 2021-11-04T05:06:11.42 0.3 undecidable manual S 168 0.2032 50 0.77 63
IV.SLCN.HHZ. 2021-11-04T05:06:11.23 0.6 undecidable manual P 142 0.4685 50 -0.33 48
IV.CMPR.HHE. 2021-11-04T05:06:10.85 0.3 undecidable manual P 175 0.4434 50 -0.28 74
IV.MRLC.HHZ. 2021-11-04T05:06:10.53 0.3 undecidable manual S 91 0.179 118 0.65 68
IX.NSC3.EHZ.02 2021-11-04T05:06:09.26 0.3 undecidable manual S 311 0.1322 126 0.91 63
IX.SRN3.HHZ.02 2021-11-04T05:06:08.67 0.6 undecidable manual P 150 0.3148 50 -0.26 51
IV.CDRU.HHZ. 2021-11-04T05:06:07.89 0.3 undecidable manual P 172 0.2725 50 -0.32 76
IX.MNT3.EHZ.02 2021-11-04T05:06:07.04 0.3 undecidable manual P 293 0.2014 50 0.04 82
IV.MRLC.HHZ. 2021-11-04T05:06:06.07 0.1 positive manual P 91 0.179 118 -0.51 100
IV.SGO.HHZ. 2021-11-04T05:06:06.78 0.3 undecidable manual P 168 0.2032 50 -0.25 80
IX.SALI.HNN.01 2021-11-04T05:06:06.52 0.3 undecidable manual P 342 0.179 118 -0.07 81
IX.CLT3.EHZ.02 2021-11-04T05:06:06.85 0.6 undecidable manual P 39 0.1835 118 0.18 54
IX.CSG3.HNE.01 2021-11-04T05:06:06.33 1.0 undecidable manual P 70 0.1691 119 -0.07 27
IX.CMP3.HNZ.02 2021-11-04T05:06:06.59 1.0 undecidable manual P 231 0.17 119 0.19 26
IX.NSC3.EHZ.02 2021-11-04T05:06:05.60 0.3 undecidable manual P 311 0.1322 126 -0.1 82
IV.MCRV.HHN. 2021-11-04T05:06:04.39 0.3 undecidable manual P 290 0.0683 145 -0.29 81
IX.COL3.HHZ.02 2021-11-04T05:06:04.56 0.3 undecidable manual P 141 0.0935 136 -0.49 78
IX.SNR3.EHZ.02 2021-11-04T05:06:04.38 0.3 undecidable manual P 242 0.0513 152 -0.11 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHN.02 ML:3.1 0.0142 0.44 AML other m 2021-11-04T05:06:07.44
IX.SNR3.EHE.02 ML:2.9 0.0117 1.44 AML other m 2021-11-04T05:06:07.13
IX.SNR3.HNE.01 ML:2.9 0.01275 1.44 AML other m 2021-11-04T05:06:07.13
IX.COL3.HHE.02 ML:3.1 0.0158 0.78 AML other m 2021-11-04T05:06:07.46
IX.SNR3.EHN.02 ML:3 0.01655 0.56 AML other m 2021-11-04T05:06:09.08
IX.SNR3.HNN.01 ML:3.1 0.01815 0.56 AML other m 2021-11-04T05:06:09.08
IX.NSC3.EHN.02 ML:2.2 0.001565 0.74 AML other m 2021-11-04T05:06:11.31
IV.SGO.HHN. ML:2.1 0.0009155 1 AML other m 2021-11-04T05:06:11.47
IX.NSC3.EHE.02 ML:2.4 0.002405 1.26 AML other m 2021-11-04T05:06:11.19
IV.SGO.HHE. ML:1.9 0.000576 1.56 AML other m 2021-11-04T05:06:13.95
IV.MRLC.HHN. ML:2.4 0.002095 0.42 AML other m 2021-11-04T05:06:13.20
IV.MRLC.HNN. ML:2.1 0.000999 0.42 AML other m 2021-11-04T05:06:13.20
IV.MRLC.HHE. ML:2.5 0.002505 1.24 AML other m 2021-11-04T05:06:13.07
IV.MRLC.HNE. ML:2.2 0.001199 1.22 AML other m 2021-11-04T05:06:13.08
IX.MNT3.HNN.01 ML:2.4 0.00149 0.74 AML other m 2021-11-04T05:06:14.34
IX.MNT3.EHN.02 ML:2.4 0.001485 0.74 AML other m 2021-11-04T05:06:14.71
IV.CDRU.HHN. ML:1.9 0.0004045 0.58 AML other m 2021-11-04T05:06:14.89
IV.CDRU.HNN. ML:2 0.0004365 0.6 AML other m 2021-11-04T05:06:14.90
IV.CDRU.HHE. ML:2.1 0.000622 1.74 AML other m 2021-11-04T05:06:14.97
IV.CDRU.HNE. ML:2.1 0.0005975 1.72 AML other m 2021-11-04T05:06:14.97
IX.MNT3.EHE.02 ML:2.3 0.00125 0.86 AML other m 2021-11-04T05:06:15.50
IX.MNT3.HNE.01 ML:2.2 0.001149 0.86 AML other m 2021-11-04T05:06:15.50
IV.SLCN.HNE. ML:2.5 0.000792 0.48 AML other m 2021-11-04T05:06:25.39
IV.ACER.HHN. ML:2.4 0.0005385 0.56 AML other m 2021-11-04T05:06:27.30
IV.ACER.HNN. ML:2.4 0.0005235 0.54 AML other m 2021-11-04T05:06:27.30
IV.ACER.HHE. ML:2.4 0.000568 0.54 AML other m 2021-11-04T05:06:27.08
IV.ACER.HNE. ML:2.4 0.000557 0.54 AML other m 2021-11-04T05:06:27.09
IV.SLCN.HNN. ML:2.3 0.000519 1.08 AML other m 2021-11-04T05:06:28.56
IV.SLCN.HHN. ML:2.3 0.0005075 0.4 AML other m 2021-11-04T05:06:28.56
IV.SLCN.HHE. ML:2.5 0.000888 0.52 AML other m 2021-11-04T05:06:32.36
IV.PAOL.HHE. ML:2.1 0.0002385 0.62 AML other m 2021-11-04T05:06:34.60
IV.PAOL.HHN. ML:2.1 0.0002285 1.54 AML other m 2021-11-04T05:06:36.95
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, http://terremoti.ingv.it/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 not available