Earthquake with magnitude of ML 2.0 on date 31-10-2019 and time 00:56:22 (UTC) in region 3 km E Artena (RM)

A magnitude ML 2.0 earthquake occured in region: 3 km E Artena (RM), on

  • 31-10-2019 00:56:22 (UTC)
  • 31-10-2019 01:56:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.74, 12.95 at 11 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
Artena RM 3 14276 14276
Colleferro RM 5 21595 35871
Valmontone RM 5 15959 51830
Rocca Massima LT 7 1136 52966
Labico RM 8 6379 59345
Segni RM 8 9159 68504
Cave RM 9 11287 79791
Gavignano RM 10 1916 81707
Lariano RM 10 13432 95139
Genazzano RM 11 6036 101175
Cori LT 11 11065 112240
Paliano FR 12 8281 120521
Rocca di Cave RM 12 377 120898
Montelanico RM 12 2131 123029
Palestrina RM 12 21672 144701
Castel San Pietro Romano RM 13 902 145603
Capranica Prenestina RM 14 351 145954
Zagarolo RM 15 17843 163797
Olevano Romano RM 15 6687 170484
Velletri RM 16 53303 223787
San Cesareo RM 16 15153 238940
Gorga RM 16 710 239650
San Vito Romano RM 16 3273 242923
Serrone FR 17 3099 246022
Rocca Priora RM 17 11962 257984
Anagni FR 17 21464 279448
Norma LT 17 3946 283394
Bellegra RM 17 2887 286281
Poli RM 17 2418 288699
Roiate RM 18 737 289436
Sgurgola FR 18 2676 292112
Gallicano nel Lazio RM 18 6334 298446
Carpineto Romano RM 19 4524 302970
Pisoniano RM 19 770 303740
Cisterna di Latina LT 19 36868 340608
Piglio FR 19 4666 345274
Acuto FR 19 1920 347194
Monte Compatri RM 19 11978 359172
Casape RM 20 744 359916
Colonna RM 20 4287 364203
Nemi RM 20 1943 366146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Velletri (53303 inhabitants)
28 Km SE of Tivoli (56533 inhabitants)
30 Km NE of Aprilia (73446 inhabitants)
30 Km N of Latina (125985 inhabitants)
35 Km SE of Guidonia Montecelio (88673 inhabitants)
38 Km E of Pomezia (62966 inhabitants)
42 Km NE of Anzio (54211 inhabitants)
42 Km E of Roma (2864731 inhabitants)
59 Km E of Fiumicino (78395 inhabitants)
78 Km SW of L'Aquila (69753 inhabitants)
95 Km S of Terni (111501 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
Rev 100 ML 2.0 2019-10-31
00:56:22
41.74 12.95 11 2019-10-31
01:08:50
Sala Sismica INGV-Roma 73543811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-31 00:56:22 ± 0.07
Latitude 41.74 ± 0.00
Longitude 12.95 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73543811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 391
Semi-minor axis of confidence ellipse (meter) 354
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32466
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 73543811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-31 01:08:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2019-10-31T00:57:00.37 3.0 undecidable manual S 1.26 0
IV.INTR.HHZ. 2019-10-31T00:56:48.60 3.0 undecidable manual S -0.65 0
IV.MOMA.HHZ. 2019-10-31T00:56:43.05 3.0 negative manual P -0.02 0
IV.POFI.HHZ. 2019-10-31T00:56:42.83 3.0 undecidable manual S -0.22 0
IV.CESX.HHZ. 2019-10-31T00:56:39.81 3.0 positive manual P -0.51 0
IV.TOLF.HHZ. 2019-10-31T00:56:38.54 3.0 positive manual P 0.39 0
IV.ARRO.EHZ. 2019-10-31T00:56:38.90 3.0 undecidable manual P -0.3 0
IV.INTR.HHZ. 2019-10-31T00:56:37.02 3.0 negative manual P -0.51 0
IV.FAGN.HHZ. 2019-10-31T00:56:37.43 3.0 negative manual P 0.98 0
IV.POFI.HHZ. 2019-10-31T00:56:34.43 3.0 negative manual P 0.38 0
IV.SRES.HHZ. 2019-10-31T00:56:34.33 3.0 negative manual P -0.26 0
IV.GUAR.HHZ. 2019-10-31T00:56:33.30 0.3 undecidable manual S 78 0.2743 50 0.1 73
IV.GIUL.HHZ. 2019-10-31T00:56:33.92 0.3 undecidable manual S 129 0.2887 50 0.28 70
IV.FIAM.HHZ. 2019-10-31T00:56:33.22 3.0 undecidable manual P -0.23 0
IV.PTQR.HHZ. 2019-10-31T00:56:32.03 3.0 negative manual P 0.51 0
IV.VVLD.HHZ. 2019-10-31T00:56:32.96 3.0 negative manual P -0.09 0
IV.LRP.EHZ. 2019-10-31T00:56:32.43 3.0 undecidable manual P -0.09 0
IV.LAV9.HHZ. 2019-10-31T00:56:31.29 0.3 undecidable manual S 252 0.1988 50 0.32 71
IV.LATB.EHZ. 2019-10-31T00:56:31.79 0.3 undecidable manual S 178 0.2446 50 -0.54 66
IV.RMP.HHZ. 2019-10-31T00:56:31.10 0.3 undecidable manual S 291 0.1996 50 0.09 74
IV.CERT.HHZ. 2019-10-31T00:56:31.16 0.6 undecidable manual S 6 0.2113 50 -0.18 48
IV.GIUL.HHZ. 2019-10-31T00:56:29.06 0.1 undecidable manual P 129 0.2887 50 0.1 97
IV.MTCE.HHZ. 2019-10-31T00:56:29.23 0.1 undecidable manual P 331 0.3247 50 -0.33 92
IV.RCAV.EHZ. 2019-10-31T00:56:28.07 0.1 undecidable manual S 357 0.1088 132 -0.12 100
IV.VIVA.HHZ. 2019-10-31T00:56:28.93 0.3 undecidable manual S 275 0.1367 126 -0.09 75
IV.GUAR.HHZ. 2019-10-31T00:56:28.78 0.1 undecidable manual P 78 0.2743 50 0.08 98
IV.CERT.HHZ. 2019-10-31T00:56:27.59 0.1 undecidable manual P 6 0.2113 50 -0.04 99
IV.RDP.HHZ. 2019-10-31T00:56:27.17 0.1 undecidable manual P 277 0.1817 50 0.04 100
IV.LAV9.HHZ. 2019-10-31T00:56:27.57 0.1 undecidable manual P 252 0.1988 50 0.15 97
IV.MA9.HHZ. 2019-10-31T00:56:27.64 0.3 undecidable manual P 278 0.2212 50 -0.16 73
IV.LATB.EHZ. 2019-10-31T00:56:27.97 0.1 undecidable manual P 178 0.2446 50 -0.23 95
IV.RMP.HHZ. 2019-10-31T00:56:27.52 0.1 negative manual P 291 0.1996 50 0.08 99
IV.VIVA.HHZ. 2019-10-31T00:56:26.44 0.1 negative manual P 275 0.1367 126 0.15 99
IV.RCAV.EHZ. 2019-10-31T00:56:25.97 0.1 undecidable manual P 357 0.1088 132 0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHE. ML:2.4 0.002941103 0.22 AML other m 2019-10-31T00:56:28.82
IV.RCAV.EHN. ML:2.5 0.0035514275 0.38 AML other m 2019-10-31T00:56:28.60
IV.VIVA.HHE. ML:3 0.0100972415 0.36 AML other m 2019-10-31T00:56:29.52
IV.VIVA.HHN. ML:3 0.0085608045 0.42 AML other m 2019-10-31T00:56:30.93
IV.RDP.HHE. ML:2.6 0.003141462 0.3 AML other m 2019-10-31T00:56:33.29
IV.RDP.HHN. ML:2.9 0.005889669 0.4 AML other m 2019-10-31T00:56:31.20
IV.RMP.HHE. ML:2.6 0.0029945735 0.34 AML other m 2019-10-31T00:56:31.74
IV.RMP.HHN. ML:2.8 0.0040111475 0.32 AML other m 2019-10-31T00:56:31.45
IV.LAV9.HHE. ML:2.9 0.005319876 0.38 AML other m 2019-10-31T00:56:35.67
IV.LAV9.HHN. ML:3 0.006520928 0.36 AML other m 2019-10-31T00:56:33.60
IV.LAV9.HNE. ML:2.9 0.0048593855 0.3696 AML other m 2019-10-31T00:56:35.67
IV.LAV9.HNN. ML:3 0.0066270825 0.3704 AML other m 2019-10-31T00:56:33.61
IV.CERT.HHE. ML:2.2 0.0010016616 0.34 AML other m 2019-10-31T00:56:33.72
IV.CERT.HHN. ML:2 0.00055133425 0.14 AML other m 2019-10-31T00:56:33.83
IV.LATB.EHE. ML:1.6 0.00022776775 0.64 AML other m 2019-10-31T00:56:32.24
IV.LATB.EHN. ML:1.3 0.000110162245 0.4 AML other m 2019-10-31T00:56:32.20
IV.GUAR.HHE. ML:2.1 0.0006853121 0.36 AML other m 2019-10-31T00:56:36.19
IV.GUAR.HHN. ML:2.2 0.00069871 0.38 AML other m 2019-10-31T00:56:34.34
IV.GIUL.HHE. ML:2.1 0.00059112845 0.28 AML other m 2019-10-31T00:56:35.37
IV.GIUL.HHN. ML:2.2 0.0007746998 0.28 AML other m 2019-10-31T00:56:34.60
IV.MTCE.HHE. ML:1.8 0.00027364305 0.48 AML other m 2019-10-31T00:56:38.66
IV.MTCE.HHN. ML:1.7 0.00019300855 0.2 AML other m 2019-10-31T00:56:35.37
IV.PTQR.HHE. ML:1.6 0.00011788715 0.4 AML other m 2019-10-31T00:56:44.00
IV.PTQR.HHN. ML:1.6 0.0001001011 0.28 AML other m 2019-10-31T00:56:39.27
IV.LRP.EHE. ML:2.3 0.00044140905 0.28 AML other m 2019-10-31T00:56:40.67
IV.LRP.EHN. ML:2.1 0.00031189535 0.18 AML other m 2019-10-31T00:56:40.74
IV.VVLD.HHE. ML:2.2 0.0003816101 0.44 AML other m 2019-10-31T00:56:41.49
IV.VVLD.HHN. ML:2.1 0.0002513372 0.48 AML other m 2019-10-31T00:56:43.18
IV.VVLD.HNE. ML:2.2 0.0003523269 0.44 AML other m 2019-10-31T00:56:41.49
IV.VVLD.HNN. ML:2.1 0.00030249025 0.6 AML other m 2019-10-31T00:56:45.78
IV.FIAM.HHE. ML:1.6 9.024825E-5 0.38 AML other m 2019-10-31T00:56:49.19
IV.FIAM.HHN. ML:1.8 0.00011567028 0.4 AML other m 2019-10-31T00:56:48.17
IV.FIAM.HNN. ML:2 0.00023144955 0.5296 AML other m 2019-10-31T00:56:48.36
IV.SRES.HHE. ML:1.7 8.7696015E-5 0.22 AML other m 2019-10-31T00:56:47.19
IV.SRES.HHN. ML:1.6 6.4256575E-5 0.3 AML other m 2019-10-31T00:56:49.71
IV.POFI.HHE. ML:1.9 0.0001509731 0.28 AML other m 2019-10-31T00:56:43.79
IV.POFI.HHN. ML:1.6 7.267394E-5 0.42 AML other m 2019-10-31T00:56:43.29
IV.POFI.HNE. ML:2 0.0001755694 0.28 AML other m 2019-10-31T00:56:43.80
IV.POFI.HNN. ML:2 0.000202737 2.3408 AML other m 2019-10-31T00:56:42.61
IV.INTR.HNE. ML:2 0.00011608675 1.5896 AML other m 2019-10-31T00:56:49.03
IV.INTR.HHE. ML:1.9 0.000109670025 0.5 AML other m 2019-10-31T00:56:57.49
IV.INTR.HHN. ML:2.2 0.00018137105 0.44 AML other m 2019-10-31T00:57:01.05
IV.FAGN.HHE. ML:2.1 0.0001659097 0.42 AML other m 2019-10-31T00:56:59.36
IV.FAGN.HHN. ML:1.9 0.00011902344 0.38 AML other m 2019-10-31T00:56:53.31
IV.TOLF.HHE. ML:1.9 9.264513E-5 0.48 AML other m 2019-10-31T00:56:51.30
IV.TOLF.HHN. ML:1.9 9.677922E-5 0.68 AML other m 2019-10-31T00:56:53.69
IV.ARRO.EHE. ML:2.1 0.0001346011 0.2 AML other m 2019-10-31T00:56:53.61
IV.ARRO.EHN. ML:2.1 0.000125881295 0.22 AML other m 2019-10-31T00:56:54.43
IV.CESX.HHE. ML:2.1 0.00012455625 0.34 AML other m 2019-10-31T00:56:54.87
IV.CESX.HHN. ML:1.9 8.558034E-5 0.38 AML other m 2019-10-31T00:56:55.12
IV.MOMA.HHE. ML:2.2 0.0001088029 0.38 AML other m 2019-10-31T00:57:00.05
IV.MOMA.HHN. ML:2.2 0.0001249909 0.24 AML other m 2019-10-31T00:57:01.32
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