Earthquake with magnitude of Md 1.0 on date 04-08-2022 and time 01:50:43 (Italy) in region Campi Flegrei

A magnitude Md 1.0 earthquake occured in region: Campi Flegrei, on

  • 03-08-2022 23:50:43 (UTC)
  • 04-08-2022 01:50:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8280, 14.1490 at 2 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
Pozzuoli NA 5 81661 81661
Quarto NA 6 40930 122591
Bacoli NA 7 26560 149151
Marano di Napoli NA 9 59874 209025
Monte di Procida NA 9 12886 221911
Napoli NA 9 974074 1195985
Calvizzano NA 10 12329 1208314
Mugnano di Napoli NA 10 34828 1243142
Qualiano NA 10 25702 1268844
Villaricca NA 11 31122 1299966
Giugliano in Campania NA 12 122974 1422940
Procida NA 12 10530 1433470
Melito di Napoli NA 13 37826 1471296
Casavatore NA 13 18661 1489957
Arzano NA 14 34886 1524843
Sant'Antimo NA 14 33905 1558748
Parete CE 15 11442 1570190
Casoria NA 15 77642 1647832
Casandrino NA 15 14336 1662168
Grumo Nevano NA 16 18061 1680229
San Giorgio a Cremano NA 16 45557 1725786
Lusciano CE 16 15362 1741148
Frattamaggiore NA 17 30329 1771477
Cesa CE 17 8841 1780318
Trentola-Ducenta CE 17 19429 1799747
Ercolano NA 17 53709 1853456
Sant'Arpino CE 17 14307 1867763
Aversa CE 17 53047 1920810
Afragola NA 17 65057 1985867
Portici NA 17 55274 2041141
Volla NA 18 23755 2064896
Frattaminore NA 18 16208 2081104
Succivo CE 18 8457 2089561
San Marcellino CE 18 14155 2103716
Crispano NA 18 12354 2116070
Cercola NA 18 18267 2134337
Casapesenna CE 18 6987 2141324
Cardito NA 18 22755 2164079
Gricignano di Aversa CE 19 11881 2175960
Orta di Atella CE 19 27191 2203151
San Sebastiano al Vesuvio NA 19 9196 2212347
Carinaro CE 19 7181 2219528
Torre del Greco NA 19 86275 2305803
Frignano CE 19 9008 2314811
Villa di Briano CE 19 7087 2321898
San Cipriano d'Aversa CE 19 13653 2335551
Teverola CE 19 14291 2349842
Caivano NA 19 37879 2387721
Massa di Somma NA 19 5444 2393165
Casalnuovo di Napoli NA 20 49855 2443020
Pollena Trocchia NA 20 13562 2456582
Ischia NA 20 19915 2476497
Casaluce CE 20 10078 2486575

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Pozzuoli (81661 inhabitants)
9 Km SW of Marano di Napoli (59874 inhabitants)
9 Km W of Napoli (974074 inhabitants)
12 Km SW of Giugliano in Campania (122974 inhabitants)
15 Km SW of Casoria (77642 inhabitants)
17 Km W of Ercolano (53709 inhabitants)
17 Km S of Aversa (53047 inhabitants)
17 Km SW of Afragola (65057 inhabitants)
17 Km W of Portici (55274 inhabitants)
19 Km W of Torre del Greco (86275 inhabitants)
23 Km SW of Acerra (59573 inhabitants)
32 Km W of Castellammare di Stabia (66466 inhabitants)
32 Km SW of Caserta (76326 inhabitants)
33 Km W of Scafati (50787 inhabitants)
49 Km W of Cava de' Tirreni (53659 inhabitants)
54 Km W of Salerno (135261 inhabitants)
55 Km W of Avellino (54857 inhabitants)
63 Km SW of Benevento (60091 inhabitants)
75 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
Md 1.0 2022-08-03
23:50:43
40.828 14.1487 3 2022-08-04
00:08:08
Sala Operativa INGV-OV (Napoli) 108082201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-03 23:50:43
Latitude 40.8280
Longitude 14.1487
Depth (km) 3 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 108082201

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) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.11
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:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 108082201
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2022-08-04 00:08:08
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