Earthquake with magnitude of ML 2.0 on date 07-10-2021 and time 01:37:46 (UTC) in region 2 km S Sant'Elia Fiumerapido (FR)

A magnitude ML 2.0 earthquake occured in region: 2 km S Sant'Elia Fiumerapido (FR), on

  • 07-10-2021 01:37:46 (UTC)
  • 07-10-2021 03:37:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.521, 13.86 at 14 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
Sant'Elia Fiumerapido FR 2 6166 6166
Cassino FR 4 36142 42308
Cervaro FR 6 8109 50417
Vallerotonda FR 6 1581 51998
Belmonte Castello FR 8 739 52737
Villa Santa Lucia FR 8 2632 55369
Terelle FR 8 422 55791
Acquafondata FR 8 263 56054
San Vittore del Lazio FR 9 2636 58690
Viticuso FR 9 353 59043
Piedimonte San Germano FR 9 6535 65578
Villa Latina FR 11 1241 66819
Pignataro Interamna FR 11 2595 69414
San Pietro Infine CE 12 944 70358
San Biagio Saracinisco FR 12 349 70707
Atina FR 12 4316 75023
Conca Casale IS 13 200 75223
Sant'Apollinare FR 13 1919 77142
Aquino FR 13 5370 82512
Castrocielo FR 14 3965 86477
Picinisco FR 14 1218 87695
Rocca d'Evandro CE 14 3283 90978
Colle San Magno FR 14 699 91677
Sant'Ambrogio sul Garigliano FR 14 966 92643
San Giorgio a Liri FR 15 3164 95807
Venafro IS 16 11280 107087
Casalattico FR 16 574 107661
Gallinaro FR 16 1269 108930
Roccasecca FR 16 7365 116295
Mignano Monte Lungo CE 17 3250 119545
Filignano IS 17 648 120193
Settefrati FR 17 728 120921
Pozzilli IS 17 2380 123301
Sant'Andrea del Garigliano FR 17 1505 124806
Casalvieri FR 17 2698 127504
Vallemaio FR 18 937 128441
Pontecorvo FR 18 13242 141683
Castelnuovo Parano FR 18 883 142566
Scapoli IS 20 680 143246

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km NW of Caserta (76326 inhabitants)
67 Km NW of Aversa (53047 inhabitants)
72 Km NW of Giugliano in Campania (122974 inhabitants)
74 Km NW of Marano di Napoli (59874 inhabitants)
76 Km NW of Afragola (65057 inhabitants)
77 Km NW of Acerra (59573 inhabitants)
77 Km NW of Casoria (77642 inhabitants)
77 Km N of Pozzuoli (81661 inhabitants)
80 Km E of Latina (125985 inhabitants)
82 Km NW of Napoli (974074 inhabitants)
88 Km NW of Portici (55274 inhabitants)
88 Km NW of Benevento (60091 inhabitants)
89 Km NW of Ercolano (53709 inhabitants)
92 Km E of Velletri (53303 inhabitants)
92 Km NW of Torre del Greco (86275 inhabitants)
96 Km S of Chieti (51815 inhabitants)
100 Km SE of L'Aquila (69753 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 2.0 2021-10-07
01:37:46
41.5207 13.8605 14 2021-10-07
01:47:03
Sala Sismica INGV-Roma 96307361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-07 01:37:46 ± 0.13
Latitude 41.5207 ± 0.0072
Longitude 13.8605 ± 0.0084
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96307361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 821
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
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) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71136
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 96307361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-07 01:47:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2021-10-07T01:38:03.92 0.3 undecidable manual S 4 0.4919 94 0.51 68
IV.VVLD.HHZ. 2021-10-07T01:38:00.47 0.3 undecidable manual S 333 0.3912 95 0.03 77
IV.MELA.HHZ. 2021-10-07T01:38:00.61 3.0 undecidable manual P -0.05 0
IV.T0110.HHZ. 2021-10-07T01:37:59.83 0.6 undecidable manual P 355 0.7114 92 -0.12 48
IV.MIDA.HHZ. 2021-10-07T01:37:58.06 0.3 undecidable manual S 67 0.3184 97 -0.22 76
IV.LRP.EHZ. 2021-10-07T01:37:56.47 0.3 undecidable manual S 302 0.241 101 0.45 73
IV.INTR.HHZ. 2021-10-07T01:37:56.02 0.3 undecidable manual P 4 0.4919 94 -0.18 75
IV.SGG.HHZ. 2021-10-07T01:37:55.35 0.1 undecidable manual P 109 0.411 95 0.53 95
IV.POFI.HHZ. 2021-10-07T01:37:55.61 0.3 undecidable manual S 331 0.2257 103 0.02 80
IV.VVLD.HHZ. 2021-10-07T01:37:54.22 0.1 undecidable manual P 333 0.3912 95 -0.27 100
IV.RNI2.HHZ. 2021-10-07T01:37:53.04 0.1 undecidable manual P 50 0.2842 98 0.37 100
IV.CERA.HHZ. 2021-10-07T01:37:53.51 0.3 undecidable manual S 57 0.1412 118 0.3 78
IV.VAGA.HHZ. 2021-10-07T01:37:53.18 0.3 undecidable manual P 110 0.2986 98 0.26 77
IV.MIDA.HHZ. 2021-10-07T01:37:52.78 0.1 undecidable manual P 67 0.3184 97 -0.46 96
IV.LRP.EHZ. 2021-10-07T01:37:51.88 0.3 positive manual P 302 0.241 101 -0.05 81
IT.OPI.HGE. 2021-10-07T01:37:51.88 0.3 undecidable manual P 355 0.2563 100 -0.32 76
IV.MCI.EHZ. 2021-10-07T01:37:51.42 0.3 undecidable manual S 230 0.0459 155 0.18 81
IV.POFI.HHZ. 2021-10-07T01:37:51.50 0.6 positive manual P 331 0.2257 103 -0.19 53
IV.CSFT.HHZ. 2021-10-07T01:37:49.94 3.0 undecidable manual P -0.06 0
IV.CERA.HHZ. 2021-10-07T01:37:49.67 1.0 undecidable manual P 57 0.1412 118 -0.64 23
IV.MCI.EHZ. 2021-10-07T01:37:48.63 0.1 positive manual P 230 0.0459 155 -0.55 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHN. ML:2.9 0.0098162825 0.24 AML other m 2021-10-07T01:37:52.14
IV.MCI.EHE. ML:2.9 0.0106292725 0.2 AML other m 2021-10-07T01:37:51.84
IV.CERA.HHE. ML:2.6 0.002862045 0.46 AML other m 2021-10-07T01:37:53.94
IV.CERA.HNN. ML:2.7 0.004351581 0.4296 AML other m 2021-10-07T01:37:54.09
IV.CERA.HHN. ML:2.8 0.004545 0.42 AML other m 2021-10-07T01:37:54.09
IV.CSFT.HHN. ML:3 0.0014937775 0.06 AML other m 2021-10-07T01:37:54.44
IV.CERA.HNE. ML:2.7 0.004155 1.54 AML other m 2021-10-07T01:37:55.99
IV.CSFT.HHE. ML:3.1 0.0016088905 0.06 AML other m 2021-10-07T01:37:55.28
IV.POFI.HNE. ML:1.9 0.00043540715 0.56 AML other m 2021-10-07T01:37:57.86
IV.LRP.EHN. ML:1.5 0.00017503765 0.24 AML other m 2021-10-07T01:37:57.50
IV.LRP.EHE. ML:2 0.0005355 0.3 AML other m 2021-10-07T01:37:57.62
IV.POFI.HHN. ML:1.6 0.0002436124 0.4 AML other m 2021-10-07T01:37:59.24
IV.MIDA.HHN. ML:2 0.0003789923 0.7 AML other m 2021-10-07T01:38:05.61
IV.RNI2.HHE. ML:1.9 0.00032014275 0.74 AML other m 2021-10-07T01:38:07.85
IV.POFI.HHE. ML:1.8 0.0003288713 0.58 AML other m 2021-10-07T01:37:57.85
IV.VAGA.HHN. ML:2.1 0.0005919619 0.68 AML other m 2021-10-07T01:38:03.50
IV.VAGA.HNN. ML:2.1 0.0005847175 0.6704 AML other m 2021-10-07T01:38:03.50
IV.VAGA.HHE. ML:1.8 0.000271 1.22 AML other m 2021-10-07T01:38:05.75
IV.POFI.HNN. ML:1.8 0.0003423154 0.5104 AML other m 2021-10-07T01:38:05.63
IV.SGG.HHN. ML:2 0.00026726695 1.04 AML other m 2021-10-07T01:38:07.24
IV.MIDA.HHE. ML:2 0.000413 0.64 AML other m 2021-10-07T01:38:07.20
IV.RNI2.HHN. ML:2.1 0.000556 0.54 AML other m 2021-10-07T01:38:07.59
IV.SGG.HHE. ML:2 0.0002685 1.4 AML other m 2021-10-07T01:38:09.73
IV.INTR.HHE. ML:2 0.000228 0.78 AML other m 2021-10-07T01:38:11.43
IV.T0110.HHN. ML:2 0.0001414588 0.64 AML other m 2021-10-07T01:38:17.14
IV.VVLD.HHE. ML:1.7 0.00015887815 0.74 AML other m 2021-10-07T01:38:12.39
IV.INTR.HHN. ML:2 0.0002515 0.64 AML other m 2021-10-07T01:38:13.92
IV.VVLD.HHN. ML:1.8 0.000202 1.56 AML other m 2021-10-07T01:38:14.12
IV.T0110.HHE. ML:2.2 0.0001955 0.84 AML other m 2021-10-07T01:38:30.92
IV.MIDA.HNE. ML:2 0.0003696043 0.7 AML other m 2021-10-07T01:38:05.62
IV.MIDA.HNN. ML:1.9 0.00029559665 0.4 AML other m 2021-10-07T01:37:59.15
IV.VVLD.HNE. ML:1.8 0.0002165214 0.4904 AML other m 2021-10-07T01:38:07.40
IV.VVLD.HNN. ML:1.8 0.00020718965 0.5 AML other m 2021-10-07T01:38:07.52
IV.SGG.HNN. ML:2 0.00027752435 0.7792 AML other m 2021-10-07T01:38:08.14
IV.INTR.HNE. ML:2.1 0.0002834262 0.82 AML other m 2021-10-07T01:38:11.45
IV.INTR.HNN. ML:2 0.00023477245 0.9304 AML other m 2021-10-07T01:38:18.97
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 Download