Earthquake with magnitude of ML 1.8 on date 28-03-2009 and time 10:31:48 (Italy) in region 2 km SE Oricola (AQ)

A magnitude ML 1.8 earthquake occured in region: 2 km SE Oricola (AQ), on

  • 28-03-2009 09:31:48 (UTC)
  • 28-03-2009 10:31:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0350, 13.0480 at 8 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
Rocca di Botte AQ 2 856 856
Oricola AQ 2 1244 2100
Arsoli RM 3 1586 3686
Roviano RM 4 1351 5037
Marano Equo RM 5 779 5816
Riofreddo RM 5 781 6597
Pereto AQ 5 682 7279
Camerata Nuova RM 5 447 7726
Anticoli Corrado RM 5 915 8641
Cervara di Roma RM 5 455 9096
Agosta RM 6 1765 10861
Vallinfreda RM 7 283 11144
Cineto Romano RM 7 601 11745
Carsoli AQ 8 5396 17141
Vivaro Romano RM 8 182 17323
Saracinesco RM 9 185 17508
Rocca Canterano RM 9 196 17704
Mandela RM 10 917 18621
Canterano RM 10 351 18972
Sambuci RM 11 925 19897
Cerreto Laziale RM 11 1118 21015
Collalto Sabino RI 11 442 21457
Ciciliano RM 12 1336 22793
Turania RI 12 241 23034
Gerano RM 12 1263 24297
Roccagiovine RM 12 263 24560
Licenza RM 13 1011 25571
Subiaco RM 13 9074 34645
Vicovaro RM 13 4019 38664
Percile RM 13 255 38919
Nespolo RI 14 246 39165
Rocca Santo Stefano RM 14 975 40140
Orvinio RI 14 405 40545
Sante Marie AQ 15 1166 41711
Pozzaglia Sabina RI 16 360 42071
Collegiove RI 16 213 42284
Pisoniano RM 16 770 43054
Castel Madama RM 16 7399 50453
Bellegra RM 17 2887 53340
Affile RM 17 1548 54888
San Polo dei Cavalieri RM 17 2992 57880
Tagliacozzo AQ 18 6889 64769
San Vito Romano RM 18 3273 68042
Roiate RM 18 737 68779
Paganico Sabino RI 18 172 68951
Arcinazzo Romano RM 18 1348 70299
Ascrea RI 19 234 70533
Jenne RM 19 366 70899
San Gregorio da Sassola RM 19 1619 72518
Olevano Romano RM 19 6687 79205
Vallepietra RM 19 283 79488
Cappadocia AQ 19 528 80016
Casape RM 20 744 80760
Marcellina RM 20 7280 88040
Monteflavio RM 20 1348 89388

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Tivoli (56533 inhabitants)
27 Km E of Guidonia Montecelio (88673 inhabitants)
45 Km NE of Velletri (53303 inhabitants)
46 Km SW of L'Aquila (69753 inhabitants)
49 Km E of Roma (2864731 inhabitants)
59 Km NE of Aprilia (73446 inhabitants)
61 Km NE of Pomezia (62966 inhabitants)
64 Km N of Latina (125985 inhabitants)
67 Km SE of Terni (111501 inhabitants)
73 Km E of Fiumicino (78395 inhabitants)
74 Km NE of Anzio (54211 inhabitants)
88 Km SW of Teramo (54892 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
99 Km W of Chieti (51815 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 2.2
ML 1.8
2009-03-28
09:31:48
42.035 13.048 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 752559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-28 09:31:48 ± 0.1
Latitude 42.0350 ± 0.0045
Longitude 13.0480 ± 0.0085
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 752559

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 555
Semi-minor axis of confidence ellipse (meter) 505
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45865
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 752559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:46

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 752559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHN. 2009-03-28T09:31:58.34 0.6 undecidable manual Pg 60 50.9157 0.114 46
IV.ORI.EHN. 2009-03-28T09:31:58.34 10.0 undecidable manual Sg 0 0 0
IV.FIAM.HHZ. 2009-03-28T09:31:58.04 0.6 undecidable manual Sg 12 26.4513 -0.102 48
IV.VVLD.HHZ. 2009-03-28T09:31:57.98 0.3 undecidable manual Pg 111 50.9157 -0.238 68
IV.GUAR.HHE. 2009-03-28T09:31:55.74 0.3 undecidable manual Pg 141 34.4433 0.085 72
IV.ORI.EHN. 2009-03-28T09:31:54.61 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2009-03-28T09:31:54.03 0.1 undecidable manual Pg 12 26.4513 -0.062 98
IV.PTQR.SHZ. 2009-03-28T09:31:54.73 0.1 undecidable manual Pg 93 29.0487 0.128 96
IV.MTCE.HHZ. 2009-03-28T09:31:54.13 0.6 undecidable manual Pg 267 25.2525 0.261 47
IV.CERT.HHZ. 2009-03-28T09:31:52.98 0.6 undecidable manual Sg 210 11.0778 -0.307 48
IV.CERT.HHZ. 2009-03-28T09:31:51.36 0.1 undecidable manual Pg 210 11.0778 0.069 100
IV.SBPO.HHZ. 2009-03-28T09:31:37.77 10.0 undecidable manual Pg 0 0 0
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