Earthquake with magnitude of ML 2.0 on date 05-02-2021 and time 07:03:49 (UTC) in region 1 km NW Montasola (RI)

A magnitude ML 2.0 earthquake occured in region: 1 km NW Montasola (RI), on

  • 05-02-2021 07:03:49 (UTC)
  • 05-02-2021 08:03:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.391, 12.673 at 9 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
Montasola RI 1 395 395
Cottanello RI 2 563 958
Vacone RI 3 256 1214
Configni RI 4 633 1847
Torri in Sabina RI 5 1256 3103
Casperia RI 6 1246 4349
Montebuono RI 7 883 5232
Tarano RI 7 1444 6676
Roccantica RI 8 563 7239
Contigliano RI 8 3783 11022
Calvi dell'Umbria TR 9 1856 12878
Selci RI 9 1106 13984
Cantalupo in Sabina RI 9 1685 15669
Poggio Catino RI 11 1341 17010
Greccio RI 11 1558 18568
Monte San Giovanni in Sabina RI 11 714 19282
Collevecchio RI 12 1577 20859
Stroncone TR 12 4917 25776
Forano RI 12 3179 28955
Stimigliano RI 14 2328 31283
Poggio Mirteto RI 14 6315 37598
Colli sul Velino RI 15 533 38131
Rieti RI 16 47698 85829
Magliano Sabina RI 16 3774 89603
Salisano RI 16 567 90170
Filacciano RM 16 477 90647
Otricoli TR 16 1869 92516
Montopoli di Sabina RI 16 4210 96726
Montenero Sabino RI 17 299 97025
Ponzano Romano RM 17 1155 98180
Mompeo RI 17 530 98710
Torrita Tiberina RM 18 1089 99799
Labro RI 18 374 100173
Castelnuovo di Farfa RI 19 1059 101232
Casaprota RI 19 744 101976
Nazzano RM 19 1436 103412
Terni TR 19 111501 214913
Narni TR 19 19785 234698
Belmonte in Sabina RI 20 636 235334
Morro Reatino RI 20 373 235707

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km S of Terni (111501 inhabitants)
44 Km N of Guidonia Montecelio (88673 inhabitants)
47 Km E of Viterbo (67173 inhabitants)
49 Km N of Tivoli (56533 inhabitants)
58 Km N of Roma (2864731 inhabitants)
60 Km W of L'Aquila (69753 inhabitants)
63 Km S of Foligno (57155 inhabitants)
78 Km NE of Fiumicino (78395 inhabitants)
79 Km N of Velletri (53303 inhabitants)
80 Km E of Civitavecchia (52991 inhabitants)
81 Km N of Pomezia (62966 inhabitants)
83 Km S of Perugia (166134 inhabitants)
89 Km N of Aprilia (73446 inhabitants)
90 Km W of Teramo (54892 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
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
Bulletin
Rev1000
ML 2.0 2021-02-05
07:03:49
42.3913 12.6727 9 2021-07-12
16:54:57
Bollettino Sismico Italiano INGV 86933481
Reviewed
Rev100
ML 2.0 2021-02-05
07:03:49
42.3923 12.6703 10 2021-02-05
07:16:42
Sala Sismica INGV-Roma 86845601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-05 07:03:49 ± 0.06
Latitude 42.3913 ± 0.0027
Longitude 12.6727 ± 0.0061
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86933481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 445
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.98835
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 86933481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-08 11:19:22

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 86845601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-05 07:16:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SCHR.EHZ. 2021-02-05T07:05:31.38 3.0 undecidable manual Sg 11.99 0
GU.GSCL.HHZ. 2021-02-05T07:05:10.33 3.0 undecidable manual Sg 12.76 0
IV.AGLI.HHZ. 2021-02-05T07:05:07.84 3.0 undecidable manual Sn -0.09 0
IV.MILN.HHZ. 2021-02-05T07:05:01.65 3.0 negative manual Pg 13.81 0
IV.IFIL.HHZ. 2021-02-05T07:04:49.02 3.0 negative manual Pn -0.51 0
IV.MGR.HHZ. 2021-02-05T07:04:46.85 3.0 negative manual Pg 10.48 0
IV.CRND.HNZ. 2021-02-05T07:04:40.21 3.0 positive manual Pn -0.96 0
IV.MTMR.EHZ. 2021-02-05T07:04:33.04 3.0 undecidable manual Pg 8.27 0
IV.GUAR.HHZ. 2021-02-05T07:04:15.32 3.0 undecidable manual S -0.31 0
IV.SMA1.EHZ. 2021-02-05T07:04:09.02 0.1 undecidable manual S 64 0.5432 50 0.51 85
IV.EL6.EHZ. 2021-02-05T07:04:08.15 0.3 undecidable manual P 18 0.9884 50 0.02 64
IV.CERT.HHZ. 2021-02-05T07:04:07.17 0.3 undecidable manual S 153 0.4982 50 0.01 71
IV.MURB.HHZ. 2021-02-05T07:04:07.04 0.6 undecidable manual P 353 0.8777 50 0.81 35
IV.MF5.EHZ. 2021-02-05T07:04:06.43 3.0 negative manual P 1.53 0
IV.FOSV.EHZ. 2021-02-05T07:04:06.31 3.0 undecidable manual P 0.41 0
IT.GNU.HGE. 2021-02-05T07:04:05.15 0.6 undecidable manual S 350 0.4191 50 0.33 45
IV.MOMA.HHZ. 2021-02-05T07:04:05.35 0.1 undecidable manual S 350 0.4191 50 0.53 86
IV.CSP1.EHZ. 2021-02-05T07:04:05.03 0.3 undecidable manual P 29 0.8013 50 0.1 66
IV.RM33.EHZ. 2021-02-05T07:04:04.97 0.3 undecidable manual S 73 0.4164 50 0.22 69
IV.MMO1.EHZ. 2021-02-05T07:04:03.03 0.3 undecidable manual P 43 0.6997 50 -0.15 66
IV.FDMO.HHZ. 2021-02-05T07:04:03.16 0.3 undecidable manual P 25 0.7132 50 -0.25 65
IV.GAVE.EHZ. 2021-02-05T07:04:02.24 0.3 undecidable manual S 28 0.3417 50 -0.3 69
IV.ASSB.HHZ. 2021-02-05T07:04:02.08 0.1 undecidable manual P 359 0.6511 50 -0.27 87
IV.LNSS.HHZ. 2021-02-05T07:04:02.38 0.3 undecidable manual S 52 0.3435 50 -0.21 71
IV.MGAB.HHZ. 2021-02-05T07:04:02.81 0.3 undecidable manual P 322 0.6637 50 0.24 66
IV.FIAM.HHZ. 2021-02-05T07:04:02.76 0.3 undecidable manual S 110 0.3507 50 -0.04 73
IV.CESI.HHZ. 2021-02-05T07:04:01.88 0.1 undecidable manual P 15 0.6367 50 -0.22 88
IV.SMA1.EHZ. 2021-02-05T07:04:00.54 0.1 undecidable manual P 64 0.5432 50 0.03 94
IV.CERT.HHZ. 2021-02-05T07:03:59.47 0.3 undecidable manual P 153 0.4982 50 -0.26 68
IV.CESX.HHZ. 2021-02-05T07:03:58.96 0.3 undecidable manual S 344 0.2257 111 0.08 74
IV.MOMA.HHZ. 2021-02-05T07:03:58.09 0.1 undecidable manual P 350 0.4191 50 -0.29 91
IV.RM33.EHZ. 2021-02-05T07:03:58.17 0.1 undecidable manual P 73 0.4164 50 -0.17 93
IT.GNU.HGE. 2021-02-05T07:03:58.52 0.3 undecidable manual P 350 0.4191 50 0.14 70
IV.FIAM.HHZ. 2021-02-05T07:03:57.08 0.3 undecidable manual P 110 0.3507 50 -0.14 71
IV.MTCE.HHZ. 2021-02-05T07:03:57.56 0.3 undecidable manual P 172 0.3723 50 -0.02 73
IV.SRES.HHZ. 2021-02-05T07:03:57.72 0.3 undecidable manual S 218 0.1961 113 -0.08 75
IV.ARRO.EHZ. 2021-02-05T07:03:57.90 0.1 undecidable manual S 20 0.1996 113 -0.05 100
IT.MMP1.HGE. 2021-02-05T07:03:56.61 0.3 undecidable manual S 158 0.1529 119 0.29 72
IV.GAVE.EHZ. 2021-02-05T07:03:56.86 0.1 positive manual P 28 0.3417 50 -0.2 94
IV.LNSS.HHZ. 2021-02-05T07:03:56.95 0.1 undecidable manual P 52 0.3435 50 -0.14 95
IV.ARRO.EHZ. 2021-02-05T07:03:54.50 0.1 positive manual P 20 0.1996 113 0.09 99
IV.CESX.HHZ. 2021-02-05T07:03:54.78 0.1 positive manual P 344 0.2257 111 -0.17 97
IV.SRES.HHZ. 2021-02-05T07:03:54.24 0.1 undecidable manual P 218 0.1961 113 -0.09 99
IT.MMP1.HGE. 2021-02-05T07:03:53.85 0.3 undecidable manual P 158 0.1529 119 0.38 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:2.2 0.0011 0.2 AML other m 2021-02-05T07:03:58.22
IV.ARRO.EHN. ML:2.3 0.001295 0.22 AML other m 2021-02-05T07:03:58.36
IV.SRES.HHN. ML:1.7 0.0003445 1.44 AML other m 2021-02-05T07:03:58.98
IV.SRES.HHE. ML:1.7 0.0003795 0.32 AML other m 2021-02-05T07:03:59.87
IV.CESX.HHN. ML:1.8 0.00033 0.92 AML other m 2021-02-05T07:04:01.49
IV.CESX.HHE. ML:1.7 0.000281 1.08 AML other m 2021-02-05T07:04:01.98
IV.LNSS.HHE. ML:2.3 0.0007175 1.02 AML other m 2021-02-05T07:04:03.64
IV.LNSS.HNE. ML:2.2 0.0006775 1.48 AML other m 2021-02-05T07:04:03.87
IV.LNSS.HNN. ML:2.4 0.0008585 0.22 AML other m 2021-02-05T07:04:03.23
IV.LNSS.HHN. ML:2.4 0.0009005 0.22 AML other m 2021-02-05T07:04:03.23
IV.GAVE.EHN. ML:2.2 0.000672 0.24 AML other m 2021-02-05T07:04:03.92
IV.GAVE.EHE. ML:2.2 0.000634 0.14 AML other m 2021-02-05T07:04:04.10
IV.RM33.EHN. ML:1.9 0.0002125 0.26 AML other m 2021-02-05T07:04:06.62
IV.MOMA.HNE. ML:2 0.000268 0.68 AML other m 2021-02-05T07:04:06.17
IV.RM33.EHE. ML:1.8 0.000165 0.32 AML other m 2021-02-05T07:04:06.72
IV.MOMA.HNN. ML:2.1 0.000361 1.34 AML other m 2021-02-05T07:04:06.90
IV.MOMA.HHN. ML:2.1 0.000363 1.34 AML other m 2021-02-05T07:04:06.90
IV.MOMA.HHE. ML:2 0.0003085 0.66 AML other m 2021-02-05T07:04:07.67
IV.CERT.HHN. ML:1.8 0.0001585 0.7 AML other m 2021-02-05T07:04:07.52
IV.FIAM.HHE. ML:1.4 9.29E-5 1.5 AML other m 2021-02-05T07:04:08.92
IV.CERT.HHE. ML:1.7 0.0001101 0.46 AML other m 2021-02-05T07:04:08.71
IV.SMA1.EHE. ML:2.1 0.000268 0.2 AML other m 2021-02-05T07:04:10.03
IV.SMA1.EHN. ML:1.9 0.00018 0.46 AML other m 2021-02-05T07:04:11.49
IV.FIAM.HHN. ML:1.4 9.24E-5 1.06 AML other m 2021-02-05T07:04:12.16
IV.CESI.HHE. ML:2 0.000162 0.32 AML other m 2021-02-05T07:04:12.55
IV.CESI.HHN. ML:2.1 0.000201 0.38 AML other m 2021-02-05T07:04:12.40
IV.ASSB.HHN. ML:1.8 9.83E-5 1.44 AML other m 2021-02-05T07:04:14.03
IV.FDMO.HHN. ML:2 0.000132 0.56 AML other m 2021-02-05T07:04:14.78
IV.FDMO.HHE. ML:2.1 0.00016 0.44 AML other m 2021-02-05T07:04:14.57
IV.MGAB.HHN. ML:2.2 0.000221 0.38 AML other m 2021-02-05T07:04:15.21
IV.MGAB.HHE. ML:2.1 0.000184 0.36 AML other m 2021-02-05T07:04:15.65
IV.ASSB.HHE. ML:1.8 0.00010395 1.32 AML other m 2021-02-05T07:04:16.73
IV.CSP1.EHN. ML:2.3 0.0002515 0.64 AML other m 2021-02-05T07:04:19.63
IV.GUAR.HHE. ML:2 0.00013705 0.3 AML other m 2021-02-05T07:04:20.54
IV.GUAR.HHN. ML:2.1 0.000161 0.42 AML other m 2021-02-05T07:04:20.57
IV.CSP1.EHE. ML:2.2 0.000163 1.08 AML other m 2021-02-05T07:04:23.84
IV.EL6.EHE. ML:1.9 7.185E-5 0.3 AML other m 2021-02-05T07:04:28.65
IV.EL6.EHN. ML:1.9 7.365E-5 0.4 AML other m 2021-02-05T07:04:30.13
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