Earthquake with magnitude of Md 3.4 on date 19-08-1998 and time 08:13:17 (UTC) in region 3 km NE Vallepietra (RM)

A magnitude Md 3.4 earthquake occured in region: 3 km NE Vallepietra (RM), on

  • 19-08-1998 08:13:17 (UTC)
  • 19-08-1998 10:13:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9430, 13.2670 at 0 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
Vallepietra RM 3 283 283
Cappadocia AQ 7 528 811
Filettino FR 8 565 1376
Castellafiume AQ 8 1106 2482
Trevi nel Lazio FR 9 1822 4304
Jenne RM 10 366 4670
Capistrello AQ 11 5252 9922
Canistro AQ 12 995 10917
Civitella Roveto AQ 14 3268 14185
Subiaco RM 14 9074 23259
Tagliacozzo AQ 14 6889 30148
Arcinazzo Romano RM 14 1348 31496
Scurcola Marsicana AQ 15 2824 34320
Affile RM 15 1548 35868
Camerata Nuova RM 16 447 36315
Fiuggi FR 16 10536 46851
Piglio FR 16 4666 51517
Guarcino FR 16 1623 53140
Avezzano AQ 17 42515 95655
Luco dei Marsi AQ 17 6079 101734
Torre Cajetani FR 17 1376 103110
Cervara di Roma RM 17 455 103565
Serrone FR 18 3099 106664
Morino AQ 18 1448 108112
Civita d'Antino AQ 18 979 109091
Roiate RM 18 737 109828
Acuto FR 18 1920 111748
Trivigliano FR 19 1705 113453
Magliano de' Marsi AQ 19 3690 117143
Sante Marie AQ 19 1166 118309
Pereto AQ 19 682 118991
Rocca di Botte AQ 19 856 119847
Canterano RM 19 351 120198
Vico nel Lazio FR 19 2234 122432
Agosta RM 20 1765 124197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Tivoli (56533 inhabitants)
45 Km E of Guidonia Montecelio (88673 inhabitants)
47 Km S of L'Aquila (69753 inhabitants)
50 Km NE of Velletri (53303 inhabitants)
61 Km NE of Latina (125985 inhabitants)
64 Km NE of Aprilia (73446 inhabitants)
65 Km E of Roma (2864731 inhabitants)
70 Km E of Pomezia (62966 inhabitants)
76 Km NE of Anzio (54211 inhabitants)
86 Km SE of Terni (111501 inhabitants)
87 Km SW of Chieti (51815 inhabitants)
87 Km E of Fiumicino (78395 inhabitants)
88 Km SW of Teramo (54892 inhabitants)
97 Km SW of Montesilvano (53738 inhabitants)
97 Km SW of Pescara (121014 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.4
ML-VAX 2.5
1998-08-19
08:13:17
41.943 13.267 0 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 348929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-08-19 08:13:17 ± 0.346
Latitude 41.9430 ± 0.0146
Longitude 13.2670 ± 0.0173
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 348929

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2168.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00380
Epicentral distance of station farthest from the epicenter (degree) 0.02242
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 348929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:26:50

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 348929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FB9.Z. 1998-08-19T08:14:12.61 10.0 undecidable manual SN 348 0.0160 -0.59 0.5
--.SNTG.Z. 1998-08-19T08:14:01.58 10.0 undecidable manual SN 349 0.0120 -0.88 0.5
--.MGR.Z. 1998-08-19T08:13:59.75 10.0 undecidable manual PN 135 0.0224 0.27 1.3
--.ASS.Z. 1998-08-19T08:13:58.79 10.0 undecidable manual SN 338 0.0108 -0.68 0.6
--.SFI.Z. 1998-08-19T08:13:57.22 10.0 undecidable manual PN 332 0.0199 1.55 0.4
--.MU9.Z. 1998-08-19T08:13:54.71 10.0 undecidable manual PN 124 0.0184 1.45 0.5
--.CRE.Z. 1998-08-19T08:13:53.50 10.0 undecidable manual PN 330 0.0174 1.29 0.7
--.FG3.Z. 1998-08-19T08:13:53.90 10.0 undecidable manual PN 95 0.0181 0.26 1.4
--.SGO.Z. 1998-08-19T08:13:53.20 10.0 undecidable manual PN 131 0.0185 -0.36 1.3
--.NRCA.Z. 1998-08-19T08:13:51.15 10.0 undecidable manual SG 352 0.0080 0.94 0.5
--.FB9.Z. 1998-08-19T08:13:50.61 10.0 undecidable manual PN 348 0.0160 0.89 1.1
--.ARV.Z. 1998-08-19T08:13:48.42 10.0 undecidable manual PN 351 0.0141 1.61 0.5
--.RFI.Z. 1998-08-19T08:13:47.79 10.0 undecidable manual SG 139 0.0075 -0.47 0.7
--.SNTG.Z. 1998-08-19T08:13:44.70 10.0 undecidable manual PN 349 0.0120 1.18 0.9
--.VTB1.Z. 1998-08-19T08:13:43.34 10.0 undecidable manual PN 126 0.0114 0.68 1.6
--.SMB1.Z. 1998-08-19T08:13:42.45 10.0 undecidable manual PN 116 0.0109 0.56 1.7
--.MNS.Z. 1998-08-19T08:13:41.64 10.0 undecidable manual SG 315 0.0055 0.36 0.8
--.ASS.Z. 1998-08-19T08:13:41.20 10.0 undecidable manual PN 338 0.0108 -0.77 1.4
--.MAB1.Z. 1998-08-19T08:13:40.16 10.0 undecidable manual PN 126 0.0103 -0.77 1.4
--.RFI.Z. 1998-08-19T08:13:35.61 10.0 undecidable manual PG 139 0.0075 0.29 1.9
--.SDI.Z. 1998-08-19T08:13:34.95 10.0 undecidable manual SG 119 0.0041 -0.69 0.6
--.RMP.Z. 1998-08-19T08:13:34.14 10.0 undecidable manual SG 252 0.0039 -0.45 0.7
--.NRCA.Z. 1998-08-19T08:13:34.47 10.0 undecidable manual PG 352 0.0080 -1.97 0.3
--.RDP.Z. 1998-08-19T08:13:34.39 10.0 undecidable manual SG 246 0.0040 -0.54 0.7
--.MNS.Z. 1998-08-19T08:13:29.77 10.0 undecidable manual PG 315 0.0055 -1.52 0.6
--.RMP.Z. 1998-08-19T08:13:27.39 10.0 undecidable manual PG 252 0.0039 -0.03 2
--.RDP.Z. 1998-08-19T08:13:27.76 10.0 undecidable manual PG 246 0.0040 0.14 2
--.AQU.Z. 1998-08-19T08:13:26.25 10.0 undecidable manual PG 13 0.0038 -0.79 1.4
--.SDI.Z. 1998-08-19T08:13:26.89 10.0 undecidable manual PG 119 0.0041 -1.14 1
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