Earthquake with magnitude of ML 2.0 on date 22-07-2019 and time 19:51:19 (Italy) in region 3 km W Tivoli (RM)

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

  • 22-07-2019 17:51:19 (UTC)
  • 22-07-2019 19:51:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.98, 12.76 at 15 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
Tivoli RM 3 56533 56533
Guidonia Montecelio RM 4 88673 145206
Marcellina RM 7 7280 152486
San Polo dei Cavalieri RM 8 2992 155478
Sant'Angelo Romano RM 8 5018 160496
Castel Madama RM 9 7399 167895
Palombara Sabina RM 10 13269 181164
San Gregorio da Sassola RM 11 1619 182783
Vicovaro RM 11 4019 186802
Fonte Nuova RM 12 32562 219364
Mentana RM 12 22921 242285
Gallicano nel Lazio RM 13 6334 248619
Casape RM 13 744 249363
Roccagiovine RM 14 263 249626
Sambuci RM 14 925 250551
Poli RM 14 2418 252969
Ciciliano RM 15 1336 254305
Mandela RM 15 917 255222
Monterotondo RM 15 40830 296052
Colonna RM 16 4287 300339
Saracinesco RM 16 185 300524
Moricone RM 16 2650 303174
Zagarolo RM 16 17843 321017
Licenza RM 16 1011 322028
Monteflavio RM 16 1348 323376
San Cesareo RM 17 15153 338529
Pisoniano RM 18 770 339299
Castel San Pietro Romano RM 18 902 340201
Monte Porzio Catone RM 18 8693 348894
Percile RM 18 255 349149
Montelibretti RM 18 5323 354472
Palestrina RM 18 21672 376144
Cerreto Laziale RM 18 1118 377262
Cineto Romano RM 19 601 377863
Montorio Romano RM 19 1984 379847
Monte Compatri RM 19 11978 391825
Anticoli Corrado RM 19 915 392740
Gerano RM 20 1263 394003
Frascati RM 20 22087 416090
Roviano RM 20 1351 417441
Capranica Prenestina RM 20 351 417792
Rocca Priora RM 20 11962 429754

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km W of Tivoli (56533 inhabitants)
4 Km SE of Guidonia Montecelio (88673 inhabitants)
25 Km E of Roma (2864731 inhabitants)
32 Km N of Velletri (53303 inhabitants)
40 Km NE of Pomezia (62966 inhabitants)
43 Km N of Aprilia (73446 inhabitants)
49 Km E of Fiumicino (78395 inhabitants)
58 Km N of Latina (125985 inhabitants)
60 Km N of Anzio (54211 inhabitants)
66 Km S of Terni (111501 inhabitants)
67 Km SW of L'Aquila (69753 inhabitants)
73 Km SE of Viterbo (67173 inhabitants)
81 Km E of Civitavecchia (52991 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 2019-07-22
17:51:19
41.98 12.77 15 2019-07-22
18:04:11
Sala Sismica INGV-Roma 70801051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-22 17:51:19 ± 0.05
Latitude 41.98 ± 0.00
Longitude 12.77 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70801051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.84087
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 21
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 70801051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-22 18:04:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CARD.HHZ. 2019-07-22T17:52:08.94 3.0 undecidable manual Pg 8.51 0
IV.MNTT.EHZ. 2019-07-22T17:51:56.60 3.0 undecidable manual S -1.42 0
IV.MMO1.EHZ. 2019-07-22T17:51:53.06 3.0 undecidable manual S 0.75 0
IV.RIBO.EHZ.01 2019-07-22T17:51:51.41 3.0 positive manual Pg 5.27 0
IV.FOSV.EHZ. 2019-07-22T17:51:42.13 3.0 undecidable manual P 0.08 0
IV.RM33.EHZ. 2019-07-22T17:51:41.85 3.0 undecidable manual S 32 0.6286 94 1 0
IV.ARRO.EHZ. 2019-07-22T17:51:40.22 0.6 undecidable manual S 0 0.6034 94 0.1 44
IV.GIUL.HHZ. 2019-07-22T17:51:38.37 1.0 undecidable manual S 139 0.554 95 -0.26 22
IV.MC2.EHZ. 2019-07-22T17:51:38.61 3.0 undecidable manual P 1.17 0
IV.ASSB.HHZ. 2019-07-22T17:51:38.47 3.0 undecidable manual P -0.17 0
IV.LATB.EHZ. 2019-07-22T17:51:37.08 0.6 undecidable manual S 163 0.5027 95 -0.05 46
IV.T0110.HHZ. 2019-07-22T17:51:36.23 3.0 negative manual P 1.44 0
IV.PTQR.HHZ. 2019-07-22T17:51:36.66 0.6 undecidable manual S 84 0.4739 96 0.37 43
IV.MOMA.HHZ. 2019-07-22T17:51:35.61 0.3 undecidable manual P 350 0.8409 93 0.06 63
IV.GUAR.HHZ. 2019-07-22T17:51:35.23 0.6 undecidable manual S 114 0.4452 96 -0.2 44
IV.MA9.HHZ. 2019-07-22T17:51:34.75 3.0 undecidable manual S 0
IV.LRP.EHZ. 2019-07-22T17:51:33.16 3.0 positive manual P -0.03 0
IV.GAVE.EHZ. 2019-07-22T17:51:33.22 0.3 undecidable manual P 8 0.7231 93 -0.32 62
IV.LNSS.HHZ. 2019-07-22T17:51:32.23 0.3 undecidable manual P 18 0.6592 94 -0.22 64
IV.RM33.EHZ. 2019-07-22T17:51:32.07 0.6 undecidable manual P 32 0.6286 94 0.14 43
IV.CESX.HHZ. 2019-07-22T17:51:32.35 0.3 undecidable manual P 348 0.6466 94 0.12 65
IV.ARRO.EHZ. 2019-07-22T17:51:31.28 0.3 undecidable manual P 0 0.6034 94 -0.22 65
IV.BARO.EHZ. 2019-07-22T17:51:31.70 0.3 undecidable manual P 298 0.5954 94 0.34 63
IV.VVLD.HHZ. 2019-07-22T17:51:31.96 3.0 undecidable manual P -0.28 0
IT.MMP1.HGE. 2019-07-22T17:51:30.53 0.6 undecidable manual S 357 0.2743 102 0.1 47
IV.GIUL.HHZ. 2019-07-22T17:51:30.33 0.3 undecidable manual P 139 0.554 95 -0.32 64
IT.CSO1.HGE. 2019-07-22T17:51:30.66 0.6 undecidable manual S 62 0.2707 103 0.34 45
IV.RDP.HHZ. 2019-07-22T17:51:29.05 0.6 undecidable manual S 191 0.2185 108 0.22 46
IV.PTQR.HHZ. 2019-07-22T17:51:29.10 0.3 undecidable manual P 84 0.4739 96 -0.19 67
IV.LATB.EHZ. 2019-07-22T17:51:29.26 0.3 undecidable manual P 163 0.5027 95 -0.52 62
IV.SAMA.EHE. 2019-07-22T17:51:29.11 0.6 undecidable manual S 214 0.2329 106 -0.14 47
IV.GUAR.HHZ. 2019-07-22T17:51:28.80 0.3 undecidable manual P 114 0.4452 96 0 70
IV.RCAV.EHZ. 2019-07-22T17:51:27.73 0.6 undecidable manual S 134 0.1853 113 -0.17 47
IV.CERT.HHZ. 2019-07-22T17:51:27.71 0.3 undecidable manual S 99 0.1628 117 0.4 68
IV.FIAM.HHZ. 2019-07-22T17:51:27.79 0.6 undecidable manual P 42 0.3921 97 -0.11 46
IV.RMP.HHZ. 2019-07-22T17:51:27.76 0.6 undecidable manual S 196 0.17 116 0.25 46
IT.MMP1.HGE. 2019-07-22T17:51:25.72 0.3 undecidable manual P 357 0.2743 102 -0.19 70
IT.CSO1.HGE. 2019-07-22T17:51:25.92 0.1 undecidable manual P 62 0.2707 103 0.07 95
IV.RMMM.HGZ. 2019-07-22T17:51:25.54 3.0 undecidable manual P 0
IV.RDP.HHZ. 2019-07-22T17:51:25.36 0.3 undecidable manual P 191 0.2185 108 0.38 67
IV.SAMA.EHE. 2019-07-22T17:51:25.22 0.6 undecidable manual P 214 0.2329 106 -0.01 48
IV.CERT.HHZ. 2019-07-22T17:51:24.24 0.1 positive manual P 99 0.1628 117 0.13 96
IV.RMP.HHZ. 2019-07-22T17:51:24.40 0.6 negative manual P 196 0.17 116 0.18 47
IV.MTCE.HHZ. 2019-07-22T17:51:24.68 0.3 undecidable manual S 340 0.0504 155 -0.28 72
IV.RCAV.EHZ. 2019-07-22T17:51:24.47 0.1 undecidable manual P 134 0.1853 113 0.02 97
IV.VIVA.HHZ. 2019-07-22T17:51:24.94 1.0 undecidable manual P 179 0.2248 107 -0.15 24
IV.MTCE.HHZ. 2019-07-22T17:51:22.73 0.1 undecidable manual P 340 0.0504 155 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:2.1 0.00142 1.6 AML other m 2019-07-22T17:51:24.80
IV.MTCE.HHN. ML:2.1 0.00126 1.46 AML other m 2019-07-22T17:51:24.14
IV.CERT.HHN. ML:2.1 0.000973 0.82 AML other m 2019-07-22T17:51:28.04
IV.RCAV.EHE. ML:2.2 0.001038 0.9 AML other m 2019-07-22T17:51:28.09
IV.RCAV.EHN. ML:2.5 0.00182 0.08 AML other m 2019-07-22T17:51:28.59
IV.CERT.HHE. ML:2.3 0.00139 0.42 AML other m 2019-07-22T17:51:28.84
IV.RMP.HHE. ML:2 0.0007815 0.3 AML other m 2019-07-22T17:51:28.86
IV.RMP.HHN. ML:2.1 0.000906 1.7 AML other m 2019-07-22T17:51:29.95
IV.VIVA.HHN. ML:2.6 0.00203 0.38 AML other m 2019-07-22T17:51:29.91
IV.RDP.HHE. ML:2.4 0.0013 0.36 AML other m 2019-07-22T17:51:29.72
IV.RDP.HHN. ML:2.4 0.00153 0.42 AML other m 2019-07-22T17:51:31.18
IV.VIVA.HHE. ML:2.3 0.001195 0.24 AML other m 2019-07-22T17:51:35.34
IV.GUAR.HHE. ML:1.9 0.0002035 0.84 AML other m 2019-07-22T17:51:35.37
IV.FIAM.HHN. ML:1.6 0.000118 0.76 AML other m 2019-07-22T17:51:37.48
IV.PTQR.HHE. ML:1.8 0.00014 0.3 AML other m 2019-07-22T17:51:37.97
IV.FIAM.HHE. ML:1.6 0.000122 1.4 AML other m 2019-07-22T17:51:38.75
IV.GUAR.HHN. ML:1.9 0.0002065 0.62 AML other m 2019-07-22T17:51:39.43
IV.PTQR.HHN. ML:1.4 6.56E-5 1.34 AML other m 2019-07-22T17:51:41.78
IV.GIUL.HHN. ML:1.9 0.000138 0.38 AML other m 2019-07-22T17:51:41.28
IV.GIUL.HHE. ML:1.8 0.0001345 1.64 AML other m 2019-07-22T17:51:41.94
IV.ARRO.EHN. ML:1.9 0.0001395 1.06 AML other m 2019-07-22T17:51:42.89
IV.ARRO.EHE. ML:1.9 0.0001304 0.2 AML other m 2019-07-22T17:51:42.62
IV.RM33.EHN. ML:2.1 0.000225 0.26 AML other m 2019-07-22T17:51:43.20
IV.VVLD.HHE. ML:1.5 4.88E-5 0.92 AML other m 2019-07-22T17:51:43.47
IV.RM33.EHE. ML:2.1 0.0001905 0.18 AML other m 2019-07-22T17:51:43.56
IV.LNSS.HHN. ML:2.1 0.0002095 0.46 AML other m 2019-07-22T17:51:43.39
IV.LNSS.HHE. ML:2 0.0001525 0.7 AML other m 2019-07-22T17:51:44.52
IV.VVLD.HHN. ML:1.6 7.155E-5 0.48 AML other m 2019-07-22T17:51:45.09
IV.CESX.HHN. ML:1.8 9.89E-5 0.56 AML other m 2019-07-22T17:51:46.47
IV.LRP.EHN. ML:2.2 0.000249 0.62 AML other m 2019-07-22T17:51:46.46
IV.LRP.EHE. ML:2.2 0.000209 0.78 AML other m 2019-07-22T17:51:46.83
IV.GAVE.EHN. ML:2.1 0.0001585 0.42 AML other m 2019-07-22T17:51:47.35
IV.GAVE.EHE. ML:2.1 0.000181 0.6 AML other m 2019-07-22T17:51:47.74
IV.MOMA.HHN. ML:2 0.00010525 0.4 AML other m 2019-07-22T17:51:50.13
IV.CESX.HHE. ML:1.6 6.715E-5 0.46 AML other m 2019-07-22T17:51:50.45
IV.MOMA.HHE. ML:2 0.0001065 0.2 AML other m 2019-07-22T17:51:51.98
IV.T0110.HHE. ML:1.7 6.385E-5 0.72 AML other m 2019-07-22T17:51:53.01
IV.T0110.HHN. ML:1.6 5.005E-5 0.46 AML other m 2019-07-22T17:51:57.38
IV.ASSB.HHE. ML:1.7 3.56E-5 0.84 AML other m 2019-07-22T17:51:57.52
IV.ASSB.HHN. ML:1.8 4.325E-5 1.22 AML other m 2019-07-22T17:51:58.63
IV.MNTT.EHN. ML:2.5 0.000181 0.42 AML other m 2019-07-22T17:52:26.63
IV.MNTT.EHE. ML:2.9 0.0004722 0.42 AML other m 2019-07-22T17:52:26.64
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