Earthquake with magnitude of Md 2.5 on date 27-03-2002 and time 22:28:43 (Italy) in region 1 km W Castel Sant'Angelo (RI)

A magnitude Md 2.5 earthquake occured in region: 1 km W Castel Sant'Angelo (RI), on

  • 27-03-2002 21:28:43 (UTC)
  • 27-03-2002 22:28:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3990, 13.0150 at 5 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
Castel Sant'Angelo RI 1 1308 1308
Borgo Velino RI 4 972 2280
Cittaducale RI 6 6828 9108
Antrodoco RI 6 2588 11696
Micigliano RI 7 127 11823
Concerviano RI 9 291 12114
Cantalice RI 12 2755 14869
Petrella Salto RI 12 1197 16066
Rieti RI 13 47698 63764
Belmonte in Sabina RI 13 636 64400
Longone Sabino RI 15 597 64997
Posta RI 16 694 65691
Rocca Sinibalda RI 16 815 66506
Poggio Bustone RI 16 2055 68561
Borbona RI 16 617 69178
Fiamignano RI 17 1413 70591
Varco Sabino RI 18 187 70778
Rivodutri RI 19 1253 72031
Leonessa RI 19 2435 74466
Cagnano Amiterno AQ 19 1369 75835
Marcetelli RI 19 89 75924
Torricella in Sabina RI 19 1342 77266

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of L'Aquila (69753 inhabitants)
35 Km SE of Terni (111501 inhabitants)
50 Km NE of Guidonia Montecelio (88673 inhabitants)
52 Km NE of Tivoli (56533 inhabitants)
64 Km W of Teramo (54892 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
71 Km NE of Roma (2864731 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
82 Km N of Velletri (53303 inhabitants)
91 Km NE of Pomezia (62966 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Aprilia (73446 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
95 Km W of Chieti (51815 inhabitants)
99 Km W of Pescara (121014 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 2.5 2002-03-27
21:28:43
42.399 13.015 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 438109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-03-27 21:28:43 ± 0.163
Latitude 42.3990 ± 0.0106
Longitude 13.0150 ± 0.0132
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 438109

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) 1599.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00809
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 438109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:54:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SNTG.Z. 2002-03-27T21:29:14.49 10.0 undecidable manual SG 356 0.8547 0.84 0
--.SDI.Z. 2002-03-27T21:29:02.41 10.0 undecidable manual PG 138 0.8991 0.67 0.1
--.SNTG.Z. 2002-03-27T21:29:00.45 10.0 negative manual PG 356 0.8547 -0.35 1.1
--.NRCA.Z. 2002-03-27T21:29:00.43 10.0 undecidable manual SG 9 0.4329 0.16 0.4
--.ASS.Z. 2002-03-27T21:28:57.97 10.0 positive manual PG 338 0.7104 -0.19 1.7
--.NRCA.Z. 2002-03-27T21:28:53.30 10.0 negative manual PG 9 0.4329 -0.05 2.3
--.PTQR.Z. 2002-03-27T21:28:53.22 10.0 negative manual PG 142 0.4662 -0.45 1
--.MNS.Z. 2002-03-27T21:28:53.41 10.0 undecidable manual SG 266 0.2442 0.49 0.2
--.AQU.Z. 2002-03-27T21:28:50.00 10.0 undecidable manual PG 98 0.2886 0.23 0.9
--.MNS.Z. 2002-03-27T21:28:48.77 10.0 negative manual PG 266 0.2442 -0.06 2.3
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