Earthquake with magnitude of Md 2.5 on date 27-05-1985 and time 03:10:32 (UTC) in region 4 km SE Lugnano in Teverina (TR)

A magnitude Md 2.5 earthquake occured in region: 4 km SE Lugnano in Teverina (TR), on

  • 27-05-1985 03:10:32 (UTC)
  • 27-05-1985 05:10:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.54, 12.36 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
Lugnano in Teverina TR 4 1494 1494
Giove TR 5 1928 3422
Amelia TR 5 11897 15319
Penna in Teverina TR 6 1099 16418
Attigliano TR 6 2028 18446
Alviano TR 7 1463 19909
Orte VT 10 8923 28832
Bassano in Teverina VT 10 1313 30145
Guardea TR 10 1836 31981
Bomarzo VT 10 1805 33786
Graffignano VT 13 2292 36078
Narni TR 13 19785 55863
Avigliano Umbro TR 14 2558 58421
Vasanello VT 14 4068 62489
Montecchio TR 14 1676 64165
Civitella d'Agliano VT 15 1640 65805
Montecastrilli TR 16 5022 70827
Castiglione in Teverina VT 17 2329 73156
Otricoli TR 17 1869 75025
Vitorchiano VT 17 5233 80258
Soriano nel Cimino VT 17 8403 88661
San Gemini TR 18 5018 93679
Baschi TR 18 2722 96401
Celleno VT 19 1355 97756
Vignanello VT 19 4652 102408
Vallerano VT 19 2621 105029
Gallese VT 20 2849 107878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Terni (111501 inhabitants)
25 Km NE of Viterbo (67173 inhabitants)
54 Km SW of Foligno (57155 inhabitants)
63 Km S of Perugia (166134 inhabitants)
68 Km NW of Guidonia Montecelio (88673 inhabitants)
68 Km NE of Civitavecchia (52991 inhabitants)
73 Km N of Roma (2864731 inhabitants)
74 Km NW of Tivoli (56533 inhabitants)
86 Km N of Fiumicino (78395 inhabitants)
88 Km W of L'Aquila (69753 inhabitants)
98 Km N of Pomezia (62966 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
Rev 1000 Md 2.5 1985-05-27
03:10:32
42.55 12.36 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 7359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-27 03:10:32 ± 0.621
Latitude 42.55 ± 0.02
Longitude 12.36 ± 0.03
Depth (km) 0 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7359

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) 3259.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01222
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 7359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CH1.Z. 1985-05-27T03:11:12.00 10.0 undecidable manual SG 344 0.01 0.18 0.7
--.SD1.Z. 1985-05-27T03:10:58.00 10.0 undecidable manual PN 127 0.0122 -0.33 1.3
--.CH1.Z. 1985-05-27T03:10:55.70 10.0 undecidable manual PG? 344 0.01 0.7 0.3
--.PO9.Z. 1985-05-27T03:10:49.00 10.0 undecidable manual SG 86 0.0039 0.31 1.2
--.MNS.Z. 1985-05-27T03:10:44.00 10.0 undecidable manual SG 123 0.0026 0.87 0.2
--.PO9.Z. 1985-05-27T03:10:41.00 10.0 undecidable manual PG 86 0.0039 -0.65 1
--.MNS.Z. 1985-05-27T03:10:38.50 10.0 undecidable manual PG 123 0.0026 0.06 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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