Earthquake with magnitude of Md 2.3 on date 27-10-1993 and time 05:29:36 (UTC) in region 2 km NE Rieti (RI)

A magnitude Md 2.3 earthquake occured in region: 2 km NE Rieti (RI), on

  • 27-10-1993 05:29:36 (UTC)
  • 27-10-1993 06:29:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4180, 12.8800 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
Rieti RI 2 47698 47698
Cantalice RI 6 2755 50453
Cittaducale RI 7 6828 57281
Contigliano RI 9 3783 61064
Poggio Bustone RI 10 2055 63119
Greccio RI 10 1558 64677
Belmonte in Sabina RI 11 636 65313
Rivodutri RI 11 1253 66566
Colli sul Velino RI 12 533 67099
Castel Sant'Angelo RI 13 1308 68407
Morro Reatino RI 13 373 68780
Monte San Giovanni in Sabina RI 13 714 69494
Concerviano RI 14 291 69785
Labro RI 14 374 70159
Borgo Velino RI 15 972 71131
Micigliano RI 15 127 71258
Cottanello RI 16 563 71821
Montenero Sabino RI 16 299 72120
Rocca Sinibalda RI 16 815 72935
Antrodoco RI 17 2588 75523
Montasola RI 17 395 75918
Torricella in Sabina RI 17 1342 77260
Leonessa RI 18 2435 79695
Longone Sabino RI 18 597 80292
Poggio San Lorenzo RI 19 589 80881
Roccantica RI 19 563 81444
Polino TR 19 233 81677
Casperia RI 19 1246 82923
Casaprota RI 19 744 83667
Configni RI 19 633 84300
Stroncone TR 20 4917 89217

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SE of Terni (111501 inhabitants)
43 Km W of L'Aquila (69753 inhabitants)
48 Km N of Guidonia Montecelio (88673 inhabitants)
51 Km N of Tivoli (56533 inhabitants)
62 Km S of Foligno (57155 inhabitants)
64 Km E of Viterbo (67173 inhabitants)
67 Km NE of Roma (2864731 inhabitants)
73 Km W of Teramo (54892 inhabitants)
82 Km N of Velletri (53303 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
89 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Fiumicino (78395 inhabitants)
94 Km N of Aprilia (73446 inhabitants)
96 Km E of Civitavecchia (52991 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 2.3 1993-10-27
05:29:36
42.418 12.88 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 199039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-10-27 05:29:36 ± 0.384
Latitude 42.4180 ± 0.0283
Longitude 12.8800 ± 0.0284
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 199039

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) 3922.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00882
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 199039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:07:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1993-10-27T05:30:10.97 10.0 undecidable manual SG 135 0.9768 0.98 0.4
--.ASS.Z. 1993-10-27T05:30:00.55 10.0 undecidable manual SG 345 0.666 0.93 0.4
--.SDI.Z. 1993-10-27T05:29:57.53 10.0 undecidable manual PG 135 0.9768 1.76 0.3
--.ASS.Z. 1993-10-27T05:29:49.93 10.0 undecidable manual PG 345 0.666 0.15 1.7
--.AQU.Z. 1993-10-27T05:29:49.76 10.0 undecidable manual SG 99 0.3885 -1.03 0.4
--.AQU.Z. 1993-10-27T05:29:43.37 10.0 undecidable manual PG 99 0.3885 -1.31 0.7
--.MNS.Z. 1993-10-27T05:29:42.63 10.0 undecidable manual SG 257 0.1443 -0.46 0.6
--.MNS.Z. 1993-10-27T05:29:40.10 10.0 positive manual PG 257 0.1443 -0.14 3.6
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