Earthquake with magnitude of ML 2.3 on date 22-09-2020 and time 14:41:12 (UTC) in region 3 km E San Biagio Saracinisco (FR)

A magnitude ML 2.3 earthquake occured in region: 3 km E San Biagio Saracinisco (FR), on

  • 22-09-2020 14:41:12 (UTC)
  • 22-09-2020 16:41:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.61, 13.96 at 18 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
San Biagio Saracinisco FR 3 349 349
Vallerotonda FR 7 1581 1930
Acquafondata FR 7 263 2193
Scapoli IS 9 680 2873
Picinisco FR 9 1218 4091
Viticuso FR 9 353 4444
Pizzone IS 9 329 4773
Villa Latina FR 10 1241 6014
Castel San Vincenzo IS 10 516 6530
Sant'Elia Fiumerapido FR 11 6166 12696
Filignano IS 11 648 13344
Rocchetta a Volturno IS 11 1113 14457
Settefrati FR 11 728 15185
Colli a Volturno IS 12 1349 16534
Belmonte Castello FR 13 739 17273
Conca Casale IS 13 200 17473
Atina FR 13 4316 21789
Cerro al Volturno IS 13 1281 23070
Pozzilli IS 14 2380 25450
Montaquila IS 14 2456 27906
Gallinaro FR 14 1269 29175
Cervaro FR 15 8109 37284
Montenero Val Cocchiara IS 15 538 37822
Venafro IS 15 11280 49102
Fornelli IS 15 1909 51011
Alfedena AQ 16 864 51875
San Vittore del Lazio FR 16 2636 54511
Terelle FR 16 422 54933
Cassino FR 16 36142 91075
San Donato Val di Comino FR 17 2107 93182
Scontrone AQ 17 574 93756
Barrea AQ 17 726 94482
Acquaviva d'Isernia IS 18 425 94907
San Pietro Infine CE 18 944 95851
Civitella Alfedena AQ 18 296 96147
Macchia d'Isernia IS 18 1035 97182
Villa Santa Lucia FR 19 2632 99814
Rionero Sannitico IS 19 1118 100932
Villetta Barrea AQ 19 653 101585
Casalattico FR 19 574 102159

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km NW of Caserta (76326 inhabitants)
73 Km N of Aversa (53047 inhabitants)
78 Km N of Giugliano in Campania (122974 inhabitants)
81 Km N of Marano di Napoli (59874 inhabitants)
81 Km NW of Acerra (59573 inhabitants)
82 Km NW of Afragola (65057 inhabitants)
83 Km NW of Casoria (77642 inhabitants)
85 Km S of Chieti (51815 inhabitants)
85 Km N of Pozzuoli (81661 inhabitants)
87 Km NW of Benevento (60091 inhabitants)
89 Km N of Napoli (974074 inhabitants)
89 Km E of Latina (125985 inhabitants)
93 Km NW of Portici (55274 inhabitants)
94 Km NW of Ercolano (53709 inhabitants)
95 Km SE of L'Aquila (69753 inhabitants)
97 Km NW of Torre del Greco (86275 inhabitants)
98 Km S of Pescara (121014 inhabitants)
99 Km E of Velletri (53303 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 2.3 2020-09-22
14:41:12
41.61 13.96 18 2020-09-22
14:54:01
Sala Sismica INGV-Roma 83133831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-22 14:41:12 ± 0.36
Latitude 41.61 ± 0.01
Longitude 13.96 ± 0.03
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83133831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2119
Semi-minor axis of confidence ellipse (meter) 859
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 2120
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 283
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46945
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 6
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 83133831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-22 14:54:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VULT.HHZ. 2020-09-22T14:42:27.92 3.0 undecidable manual Sg 16 0
IV.RESU.HHZ. 2020-09-22T14:42:15.26 3.0 positive manual Pg 9.57 0
IX.STN3.HHZ.02 2020-09-22T14:42:09.51 3.0 undecidable manual Sn -9.99 0
MN.CLTB.HHZ. 2020-09-22T14:42:05.64 3.0 negative manual Pn 0.2 0
IV.SGTA.HHZ. 2020-09-22T14:41:59.61 3.0 undecidable manual Sn -6.04 0
IV.MSRU.HHZ. 2020-09-22T14:41:58.46 3.0 positive manual Pn -3.4 0
SL.LJU.BHZ. 2020-09-22T14:41:55.87 3.0 undecidable manual Sg 4.9 0
IV.SPS2.HHZ. 2020-09-22T14:41:50.59 3.0 negative manual Pn -2.64 0
IV.SCHR.EHZ. 2020-09-22T14:41:50.83 3.0 positive manual Pg 9.47 0
OX.CIMO.HHZ. 2020-09-22T14:41:49.98 3.0 undecidable manual Sg 2.04 0
IV.ROSPO.HHZ. 2020-09-22T14:41:44.51 3.0 undecidable manual Sg 3.54 0
CR.STON.BHZ. 2020-09-22T14:41:39.54 3.0 positive manual Pg 5.5 0
IV.TRIV.HHZ. 2020-09-22T14:41:29.03 0.6 undecidable manual S 70 0.4694 100 -0.03 46
GU.CARD.HHZ. 2020-09-22T14:41:28.89 3.0 undecidable manual Sg 6.22 0
IV.CMPR.HHZ. 2020-09-22T14:41:27.60 3.0 undecidable manual Pn -7.99 0
IV.SGG.HHZ. 2020-09-22T14:41:26.76 0.6 undecidable manual S 125 0.384 102 0.19 45
IV.T0110.HHZ. 2020-09-22T14:41:26.78 3.0 undecidable manual Sn -1.12 0
IV.VAGA.HHZ. 2020-09-22T14:41:23.66 0.3 undecidable manual S 133 0.2815 109 0.03 72
IV.TRIV.HHZ. 2020-09-22T14:41:22.17 0.6 undecidable manual P 70 0.4694 100 0.1 45
OX.CIMO.HHZ. 2020-09-22T14:41:22.77 3.0 undecidable manual Pg 5.98 0
IV.MTCE.HHZ. 2020-09-22T14:41:22.14 3.0 undecidable manual Sn -4.82 0
GU.POPM.HHZ. 2020-09-22T14:41:21.29 3.0 undecidable manual Sg 2.95 0
IV.MIDA.HHZ. 2020-09-22T14:41:20.36 1.0 undecidable manual S 81 0.2239 115 -1.68 12
IV.SGG.HHZ. 2020-09-22T14:41:20.70 0.3 undecidable manual P 125 0.384 102 0.07 70
IV.RNI2.HHZ. 2020-09-22T14:41:20.94 0.1 undecidable manual S 56 0.1745 123 0.18 94
IX.CSG3.HNZ.01 2020-09-22T14:41:19.55 3.0 undecidable manual Pn -9.99 0
IV.CERA.HHZ. 2020-09-22T14:41:18.40 0.1 undecidable manual S 101 0.0459 161 0.03 100
IV.VAGA.HHZ. 2020-09-22T14:41:18.82 0.1 undecidable manual P 133 0.2815 109 -0.12 93
IV.RNI2.HHZ. 2020-09-22T14:41:17.52 0.1 undecidable manual P 56 0.1745 123 0.24 94
IV.MIDA.HHZ. 2020-09-22T14:41:17.61 0.1 negative manual P 81 0.2239 115 -0.41 89
IV.CERA.HHZ. 2020-09-22T14:41:16.00 0.1 undecidable manual P 101 0.0459 161 0.1 99
IV.VIVA.HHZ. 2020-09-22T14:41:12.88 3.0 positive manual Pg 4.27 0
IV.RIBO.EHZ.01 2020-09-22T14:41:12.44 3.0 undecidable manual Sn -6.06 0
IV.MTRZ.HHZ. 2020-09-22T14:41:07.72 3.0 undecidable manual Sn -3.32 0
IV.MURB.HHZ. 2020-09-22T14:41:03.83 3.0 undecidable manual Sg 2.83 0
IV.PE3.EHZ. 2020-09-22T14:41:01.64 3.0 undecidable manual Sg 4.25 0
GU.POPM.HHZ. 2020-09-22T14:41:00.11 3.0 negative manual Pg -0.05 0
IV.FOSV.EHZ. 2020-09-22T14:41:00.66 3.0 undecidable manual Sn -0.31 0
IV.CRTC.HHZ. 2020-09-22T14:40:57.47 3.0 undecidable manual Sn -1.04 0
IV.LNSS.HHZ. 2020-09-22T14:40:53.07 3.0 undecidable manual Pn -5.16 0
IV.CSNT.HHZ. 2020-09-22T14:40:49.99 3.0 undecidable manual P -5.41 0
IV.SENI.HNZ. 2020-09-22T14:40:48.64 3.0 positive manual P -2.13 0
IV.MURB.HNZ. 2020-09-22T14:40:46.71 3.0 positive manual P -3.71 0
IV.CRTC.HHZ. 2020-09-22T14:40:46.82 3.0 positive manual P -2.2 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIV.HHN. ML:1.6 9.41E-5 0.42 AML other m 2020-09-22T14:41:41.16
IV.CERA.HNN. ML:2.6 0.00341 1.58 AML other m 2020-09-22T14:41:18.03
IV.MIDA.HHE. ML:2.6 0.00208 0.2 AML other m 2020-09-22T14:41:21.20
IV.MIDA.HNN. ML:2.5 0.00172 0.2 AML other m 2020-09-22T14:41:21.20
IV.MIDA.HHN. ML:2.6 0.002055 0.52 AML other m 2020-09-22T14:41:21.64
IV.MIDA.HNE. ML:2.6 0.00201 0.92 AML other m 2020-09-22T14:41:21.64
IV.CERA.HNE. ML:2.3 0.002705 0.4 AML other m 2020-09-22T14:41:23.33
IV.RNI2.HHE. ML:2.2 0.001515 0.34 AML other m 2020-09-22T14:41:24.38
IV.RNI2.HNN. ML:2.3 0.00121 0.38 AML other m 2020-09-22T14:41:25.16
IV.VAGA.HHE. ML:2.4 0.0011255 0.26 AML other m 2020-09-22T14:41:25.33
IV.VAGA.HNE. ML:2.4 0.001045 0.26 AML other m 2020-09-22T14:41:25.33
IV.VAGA.HNN. ML:2.6 0.00145 0.98 AML other m 2020-09-22T14:41:26.30
IV.SGG.HHE. ML:2.1 0.0004045 0.5 AML other m 2020-09-22T14:41:27.48
IV.SGG.HHN. ML:2.1 0.0003725 0.34 AML other m 2020-09-22T14:41:28.46
IV.TRIV.HHE. ML:1.3 0.00012845 0.54 AML other m 2020-09-22T14:41:42.60
IV.CERA.HHE. ML:2.3 0.001949375 0.48 AML other m 2020-09-22T14:41:18.32
IV.RNI2.HNE. ML:2.3 0.0011692065 0.5824 AML other m 2020-09-22T14:41:20.97
IV.RNI2.HHN. ML:2.2 0.0010512654 0.2176 AML other m 2020-09-22T14:41:21.27
IV.VAGA.HHN. ML:2.6 0.001490056 0.2752 AML other m 2020-09-22T14:41:25.93
IV.SGG.HNE. ML:2.1 0.00039899495 1.0112 AML other m 2020-09-22T14:41:27.08
IV.SGG.HNN. ML:1.8 0.0001710839 0.4992 AML other m 2020-09-22T14:41:26.62
IV.TRIV.HNE. ML:1.4 6.484585E-5 0.7424 AML other m 2020-09-22T14:41:29.70
IV.TRIV.HNN. ML:1.3 4.4717705E-5 0.544 AML other m 2020-09-22T14:41:29.39
IV.CMPR.HHN. ML:2.3 7.322704E-5 0.1216 AML other m 2020-09-22T14:41:42.68
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download