Earthquake with magnitude of Md 2.1 on date 13-03-2023 and time 22:12:56 (Italy) in region Vesuvio

A magnitude Md 2.1 earthquake occured in region: Vesuvio, on

  • 13-03-2023 21:12:56 (UTC)
  • 13-03-2023 22:12:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.8320, 14.4330 at 0 km depth.

The earthquake was located by: Sala Operativa INGV-OV (Napoli).

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
Somma Vesuviana NA 4 35233 35233
Ottaviano NA 4 23860 59093
Sant'Anastasia NA 5 27671 86764
Massa di Somma NA 5 5444 92208
San Sebastiano al Vesuvio NA 5 9196 101404
Pollena Trocchia NA 5 13562 114966
Terzigno NA 6 18968 133934
San Giuseppe Vesuviano NA 6 30657 164591
Portici NA 7 55274 219865
Boscotrecase NA 7 10363 230228
Cercola NA 7 18267 248495
Trecase NA 7 9097 257592
Boscoreale NA 7 28072 285664
Torre del Greco NA 8 86275 371939
Ercolano NA 8 53709 425648
San Giorgio a Cremano NA 8 45557 471205
Torre Annunziata NA 8 42789 513994
San Gennaro Vesuviano NA 9 11966 525960
Volla NA 9 23755 549715
Pomigliano d'Arco NA 9 39922 589637
Castello di Cisterna NA 10 7869 597506
Brusciano NA 10 16466 613972
Poggiomarino NA 10 21976 635948
Scisciano NA 11 5994 641942
Mariglianella NA 11 7787 649729
Marigliano NA 11 30157 679886
Pompei NA 11 25358 705244
Saviano NA 11 15982 721226
San Vitaliano NA 11 6461 727687
Palma Campania NA 11 15978 743665
Casalnuovo di Napoli NA 12 49855 793520
Scafati SA 12 50787 844307
Striano NA 12 8397 852704
Carbonara di Nola NA 13 2429 855133
Nola NA 13 34431 889564
San Paolo Bel Sito NA 13 3513 893077
Acerra NA 14 59573 952650
Liveri NA 14 1607 954257
Santa Maria la Carità NA 14 11722 965979
Domicella AV 14 1862 967841
Afragola NA 14 65057 1032898
Cimitile NA 14 7280 1040178
Casoria NA 15 77642 1117820
San Marzano sul Sarno SA 15 10442 1128262
Marzano di Nola AV 15 1727 1129989
San Valentino Torio SA 15 10947 1140936
Angri SA 15 34002 1174938
Napoli NA 15 974074 2149012
Casamarciano NA 15 3289 2152301
Casavatore NA 15 18661 2170962
Sant'Antonio Abate NA 16 19743 2190705
Castellammare di Stabia NA 16 66466 2257171
Sarno SA 16 31529 2288700
Camposano NA 16 5333 2294033
Arzano NA 16 34886 2328919
Pago del Vallo di Lauro AV 16 1830 2330749
Visciano NA 17 4454 2335203
Comiziano NA 17 1814 2337017
Lettere NA 17 6188 2343205
Cardito NA 17 22755 2365960
Casola di Napoli NA 17 3898 2369858
Cicciano NA 17 12906 2382764
Gragnano NA 18 29136 2411900
Sant'Egidio del Monte Albino SA 18 8909 2420809
Caivano NA 18 37879 2458688
Lauro AV 18 3509 2462197
Tufino NA 18 3776 2465973
Taurano AV 18 1546 2467519
Corbara SA 18 2545 2470064
Frattamaggiore NA 18 30329 2500393
Crispano NA 18 12354 2512747
Quindici AV 19 1938 2514685
Vico Equense NA 19 20969 2535654
Grumo Nevano NA 19 18061 2553715
Pagani SA 19 35834 2589549
Pimonte NA 19 5980 2595529
Casandrino NA 19 14336 2609865
Roccarainola NA 19 7082 2616947
Frattaminore NA 19 16208 2633155
Sperone AV 20 3706 2636861
Melito di Napoli NA 20 37826 2674687
Moschiano AV 20 1673 2676360
Sant'Antimo NA 20 33905 2710265

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km E of Portici (55274 inhabitants)
8 Km NE of Torre del Greco (86275 inhabitants)
8 Km E of Ercolano (53709 inhabitants)
12 Km NW of Scafati (50787 inhabitants)
14 Km SE of Acerra (59573 inhabitants)
14 Km SE of Afragola (65057 inhabitants)
15 Km SE of Casoria (77642 inhabitants)
15 Km E of Napoli (974074 inhabitants)
16 Km N of Castellammare di Stabia (66466 inhabitants)
22 Km E of Marano di Napoli (59874 inhabitants)
22 Km SE of Giugliano in Campania (122974 inhabitants)
25 Km SE of Aversa (53047 inhabitants)
27 Km NW of Cava de' Tirreni (53659 inhabitants)
28 Km S of Caserta (76326 inhabitants)
29 Km E of Pozzuoli (81661 inhabitants)
32 Km W of Avellino (54857 inhabitants)
32 Km NW of Salerno (135261 inhabitants)
44 Km SW of Benevento (60091 inhabitants)
53 Km W of Battipaglia (50786 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
Rev200
Md 2.1 2023-03-13
21:12:56
40.8325 14.4327 0 2023-03-13
21:36:41
Sala Operativa INGV-OV (Napoli) 115334591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-13 21:12:56
Latitude 40.8325
Longitude 14.4327
Depth (km) 0 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 115334591

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 228
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 115334591
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2023-03-13 21:36:41
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, /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 Download