Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 30-05-2007 and time 10:30:28 (Italy) in region 2 km N Vallepietra (RM)

A magnitude ML 1.8 earthquake occured in region: 2 km N Vallepietra (RM), on

  • 30-05-2007 08:30:28 (UTC)
  • 30-05-2007 10:30:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9420, 13.2280 at 10 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.

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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 2 283 283
Jenne RM 8 366 649
Cappadocia AQ 9 528 1177
Trevi nel Lazio FR 9 1822 2999
Filettino FR 10 565 3564
Castellafiume AQ 10 1106 4670
Subiaco RM 11 9074 13744
Arcinazzo Romano RM 12 1348 15092
Affile RM 13 1548 16640
Camerata Nuova RM 13 447 17087
Capistrello AQ 14 5252 22339
Piglio FR 14 4666 27005
Cervara di Roma RM 14 455 27460
Tagliacozzo AQ 14 6889 34349
Fiuggi FR 15 10536 44885
Canistro AQ 15 995 45880
Roiate RM 15 737 46617
Serrone FR 16 3099 49716
Canterano RM 16 351 50067
Rocca di Botte AQ 16 856 50923
Pereto AQ 17 682 51605
Scurcola Marsicana AQ 17 2824 54429
Civitella Roveto AQ 17 3268 57697
Agosta RM 17 1765 59462
Rocca Canterano RM 17 196 59658
Torre Cajetani FR 17 1376 61034
Rocca Santo Stefano RM 17 975 62009
Acuto FR 17 1920 63929
Guarcino FR 17 1623 65552
Bellegra RM 18 2887 68439
Sante Marie AQ 18 1166 69605
Olevano Romano RM 18 6687 76292
Marano Equo RM 18 779 77071
Trivigliano FR 19 1705 78776
Gerano RM 19 1263 80039
Avezzano AQ 19 42515 122554
Oricola AQ 20 1244 123798

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Tivoli (56533 inhabitants)
42 Km E of Guidonia Montecelio (88673 inhabitants)
47 Km NE of Velletri (53303 inhabitants)
48 Km SW of L'Aquila (69753 inhabitants)
59 Km NE of Latina (125985 inhabitants)
62 Km NE of Aprilia (73446 inhabitants)
62 Km E of Roma (2864731 inhabitants)
67 Km E of Pomezia (62966 inhabitants)
74 Km NE of Anzio (54211 inhabitants)
84 Km SE of Terni (111501 inhabitants)
84 Km E of Fiumicino (78395 inhabitants)
89 Km SW of Teramo (54892 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
99 Km SW of Montesilvano (53738 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 2.0
ML 1.8 		2007-05-30
08:30:28		 41.942 13.228 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 633069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-05-30 08:30:28 ± 0.37
Latitude 41.9420 ± 0.0180
Longitude 13.2280 ± 0.0290
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 633069

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2632
Semi-minor axis of confidence ellipse (meter) 1684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 3124.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.85
Epicentral distance of station closest to the epicenter (degree) 0.16008
Epicentral distance of station farthest from the epicenter (degree) 0.33545
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 633069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:02:58

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 633069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:02:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2007-05-30T08:30:40.73 0.3 undecidable manual Sg 346 37.2294 -0.219 75
IV.FIAM.HHZ. 2007-05-30T08:30:35.82 0.1 undecidable manual Pg 346 37.2294 0.216 100
IV.GUAR.EHE. 2007-05-30T08:30:35.83 0.3 undecidable manual Sg 157 17.7711 0.441 74
IV.CERT.HHZ. 2007-05-30T08:30:35.80 0.1 undecidable manual Sg 272 20.3685 -0.36 100
IV.CERT.HHZ. 2007-05-30T08:30:33.52 0.1 undecidable manual Pg 272 20.3685 0.68 90
IV.GUAR.EHE. 2007-05-30T08:30:31.26 0.3 undecidable manual Pg 157 17.7711 -1.134 55
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download