Earthquake with magnitude of ML 0.9 on date 28-12-2021 and time 12:58:44 (Italy) in region 6 km SE Laviano (SA)

A magnitude ML 0.9 earthquake occured in region: 6 km SE Laviano (SA), on

  • 28-12-2021 11:58:44 (UTC)
  • 28-12-2021 12:58:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7530, 15.3620 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
Laviano SA 6 1438 1438
Colliano SA 7 3638 5076
Santomenna SA 7 443 5519
Castelgrande PZ 7 943 6462
Valva SA 8 1643 8105
Castelnuovo di Conza SA 8 619 8724
Pescopagano PZ 10 1910 10634
Sant'Andrea di Conza AV 10 1539 12173
Muro Lucano PZ 10 5497 17670
San Gregorio Magno SA 11 4286 21956
Palomonte SA 12 3985 25941
Conza della Campania AV 12 1373 27314
Calabritto AV 12 2391 29705
Oliveto Citra SA 13 3802 33507
Caposele AV 13 3483 36990
Senerchia AV 13 842 37832
Buccino SA 14 5047 42879
Ricigliano SA 14 1144 44023
Teora AV 14 1537 45560
Bella PZ 15 5171 50731
Romagnano al Monte SA 15 368 51099
Contursi Terme SA 15 3394 54493
Rapone PZ 16 990 55483
Cairano AV 16 326 55809
San Fele PZ 17 3004 58813
Balvano PZ 17 1830 60643
Calitri AV 18 4666 65309
Ruvo del Monte PZ 19 1083 66392
Salvitelle SA 20 560 66952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Battipaglia (50786 inhabitants)
40 Km W of Potenza (67122 inhabitants)
51 Km E of Avellino (54857 inhabitants)
51 Km E of Salerno (135261 inhabitants)
56 Km E of Cava de' Tirreni (53659 inhabitants)
64 Km SE of Benevento (60091 inhabitants)
70 Km E of Scafati (50787 inhabitants)
73 Km SW of Cerignola (58396 inhabitants)
75 Km E of Castellammare di Stabia (66466 inhabitants)
80 Km S of Foggia (151991 inhabitants)
84 Km E of Torre del Greco (86275 inhabitants)
85 Km E of Portici (55274 inhabitants)
86 Km E of Ercolano (53709 inhabitants)
86 Km E of Acerra (59573 inhabitants)
90 Km E of Afragola (65057 inhabitants)
92 Km E of Casoria (77642 inhabitants)
94 Km E of Caserta (76326 inhabitants)
94 Km E of Napoli (974074 inhabitants)
95 Km SW of Andria (100440 inhabitants)
99 Km SW of Barletta (94814 inhabitants)
100 Km E of Giugliano in Campania (122974 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 0.9 2021-12-28
11:58:44
40.7533 15.3617 11 2022-03-30
13:04:34
Bollettino Sismico Italiano INGV 100482381
Reviewed
Rev100
ML 0.9 2021-12-28
11:58:44
40.8 15.3847 10 2021-12-28
12:05:55
Sala Sismica INGV-Roma 99078891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-28 11:58:44 ± 0.11
Latitude 40.7533 ± 0.0090
Longitude 15.3617 ± 0.0083
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100482381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 975
Semi-minor axis of confidence ellipse (meter) 580
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26710
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 100482381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-01 14:55:23

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 99078891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-28 12:05:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMN.HHZ. 2021-12-28T11:59:15.04 3.0 undecidable manual Sg 0.14 0
IV.TST01.HHZ. 2021-12-28T11:58:57.26 3.0 undecidable manual P 3.45 0
IV.CDRU.HNZ. 2021-12-28T11:58:55.60 0.6 undecidable manual S 189 0.2671 91 0.65 42
IV.SNAL.HNE. 2021-12-28T11:58:54.06 0.6 undecidable manual S 326 0.2068 91 0.89 38
IX.NSC3.EHE.02 2021-12-28T11:58:52.65 0.6 undecidable manual S 297 0.2041 91 -0.43 45
IV.MCRV.HHZ. 2021-12-28T11:58:51.30 0.6 undecidable manual S 281 0.1493 94 -0.16 48
IX.SCL3.EHZ.02 2021-12-28T11:58:51.05 0.6 undecidable manual S 117 0.1277 100 0.23 48
IX.SNR3.EHZ.02 2021-12-28T11:58:51.66 0.3 undecidable manual S 262 0.1295 99 0.79 58
IV.SNAL.HNE. 2021-12-28T11:58:49.42 0.3 undecidable manual P 326 0.2068 91 -0.12 71
IX.RDM3.HHZ.02 2021-12-28T11:58:49.18 0.3 undecidable manual P 47 0.1799 92 0.1 74
IV.MRLC.HHE. 2021-12-28T11:58:49.84 0.6 undecidable manual S 88 0.0962 118 -0.11 49
IV.CDRU.HNZ. 2021-12-28T11:58:49.95 0.3 undecidable manual P 189 0.2671 91 -0.62 62
IX.COL3.HHZ.02 2021-12-28T11:58:49.19 0.6 undecidable manual S 200 0.0701 133 -0.13 50
IX.SCL3.EHZ.02 2021-12-28T11:58:48.25 0.3 undecidable manual P 117 0.1277 100 0.06 74
IX.SNR3.EHZ.02 2021-12-28T11:58:48.47 0.3 undecidable manual P 262 0.1295 99 0.26 71
IX.VDS3.HNN.01 2021-12-28T11:58:48.75 0.6 undecidable manual S 104 0.0513 145 -0.2 49
IV.MCRV.HHZ. 2021-12-28T11:58:48.25 0.3 undecidable manual P 281 0.1493 94 -0.3 70
IV.MRLC.HHE. 2021-12-28T11:58:48.03 0.3 undecidable manual P 88 0.0962 118 0.35 70
IX.NSC3.EHE.02 2021-12-28T11:58:48.98 0.3 undecidable manual P 297 0.2041 91 -0.51 66
IX.VDS3.HNN.01 2021-12-28T11:58:47.02 0.3 undecidable manual P 104 0.0513 145 -0.08 75
IX.COL3.HHZ.02 2021-12-28T11:58:47.25 0.1 positive manual P 200 0.0701 133 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHN.02 ML:0.9 0.00010605 0.58 AML other m 2021-12-28T11:58:49.44
IX.COL3.HHE.02 ML:1.0 0.0001455 0.32 AML other m 2021-12-28T11:58:50.62
IV.MCRV.HHN. ML:0.8 0.0000555 0.5 AML other m 2021-12-28T11:58:51.44
IV.MCRV.HHE. ML:0.7 0.0000402 0.42 AML other m 2021-12-28T11:58:53.13
IX.SCL3.EHN.02 ML:1.0 0.00008499999999999999 0.82 AML other m 2021-12-28T11:58:53.41
IX.SCL3.EHE.02 ML:0.9 0.00006785 0.82 AML other m 2021-12-28T11:58:53.47
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