Earthquake with magnitude of Md 2.7 on date 23-06-1985 and time 22:11:24 (UTC) in region 1 km NE Montasola (RI)

A magnitude Md 2.7 earthquake occured in region: 1 km NE Montasola (RI), on

  • 23-06-1985 22:11:24 (UTC)
  • 24-06-1985 00:11:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.395, 12.694 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montasola RI 1 395 395
Cottanello RI 2 563 958
Vacone RI 5 256 1214
Configni RI 5 633 1847
Contigliano RI 6 3783 5630
Torri in Sabina RI 6 1256 6886
Casperia RI 7 1246 8132
Roccantica RI 8 563 8695
Montebuono RI 8 883 9578
Greccio RI 9 1558 11136
Tarano RI 9 1444 12580
Selci RI 10 1106 13686
Monte San Giovanni in Sabina RI 10 714 14400
Cantalupo in Sabina RI 10 1685 16085
Calvi dell'Umbria TR 10 1856 17941
Poggio Catino RI 11 1341 19282
Stroncone TR 12 4917 24199
Collevecchio RI 13 1577 25776
Forano RI 13 3179 28955
Colli sul Velino RI 14 533 29488
Rieti RI 14 47698 77186
Poggio Mirteto RI 14 6315 83501
Stimigliano RI 15 2328 85829
Salisano RI 16 567 86396
Montenero Sabino RI 16 299 86695
Montopoli di Sabina RI 17 4210 90905
Mompeo RI 17 530 91435
Labro RI 17 374 91809
Filacciano RM 17 477 92286
Magliano Sabina RI 18 3774 96060
Otricoli TR 18 1869 97929
Ponzano Romano RM 18 1155 99084
Casaprota RI 18 744 99828
Belmonte in Sabina RI 18 636 100464
Castelnuovo di Farfa RI 19 1059 101523
Morro Reatino RI 19 373 101896
Torrita Tiberina RM 19 1089 102985
Terni TR 19 111501 214486
Rivodutri RI 19 1253 215739
Cantalice RI 19 2755 218494
Poggio Bustone RI 20 2055 220549
Nazzano RM 20 1436 221985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km S of Terni (111501 inhabitants)
44 Km N of Guidonia Montecelio (88673 inhabitants)
48 Km E of Viterbo (67173 inhabitants)
49 Km N of Tivoli (56533 inhabitants)
58 Km W of L'Aquila (69753 inhabitants)
58 Km NE of Roma (2864731 inhabitants)
63 Km S of Foligno (57155 inhabitants)
79 Km NE of Fiumicino (78395 inhabitants)
79 Km N of Velletri (53303 inhabitants)
81 Km E of Civitavecchia (52991 inhabitants)
82 Km N of Pomezia (62966 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
88 Km W of Teramo (54892 inhabitants)
89 Km N of Aprilia (73446 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 2.7 1985-06-23
22:11:24
42.395 12.694 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 9019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-23 22:11:24 ± 0.361
Latitude 42.3950 ± 0.0198
Longitude 12.6940 ± 0.0333
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 9019

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) 3509.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01206
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 9019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AR1.Z. 1985-06-23T22:12:02.00 10.0 undecidable manual SN 9 0.01 0.39 0.5
--.CH1.Z. 1985-06-23T22:11:48.80 10.0 undecidable manual PN 336 0.0121 -0.3 1.3
--.AR1.Z. 1985-06-23T22:11:47.00 10.0 undecidable manual PN 9 0.01 1.05 0.4
--.SD1.Z. 1985-06-23T22:11:45.50 10.0 undecidable manual PN 129 0.0096 0.14 1.6
--.AS1.Z. 1985-06-23T22:11:37.50 10.0 undecidable manual PG 357 0.006 -0.53 1.4
--.PO9.Z. 1985-06-23T22:11:35.00 10.0 undecidable manual SG 45 0.0023 0.31 1
--.PO9.Z. 1985-06-23T22:11:29.50 10.0 undecidable manual PG 45 0.0023 -0.9 0.7
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