Earthquake with magnitude of Md 2.3 on date 04-09-2001 and time 12:20:39 (Italy) in region 6 km N Petrella Salto (RI)

A magnitude Md 2.3 earthquake occured in region: 6 km N Petrella Salto (RI), on

  • 04-09-2001 10:20:39 (UTC)
  • 04-09-2001 12:20:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.35, 13.06 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
Petrella Salto RI 6 1197 1197
Castel Sant'Angelo RI 6 1308 2505
Borgo Velino RI 7 972 3477
Concerviano RI 7 291 3768
Antrodoco RI 8 2588 6356
Fiamignano RI 10 1413 7769
Cittaducale RI 11 6828 14597
Longone Sabino RI 12 597 15194
Micigliano RI 12 127 15321
Varco Sabino RI 12 187 15508
Marcetelli RI 13 89 15597
Rocca Sinibalda RI 14 815 16412
Belmonte in Sabina RI 14 636 17048
Scoppito AQ 16 3727 20775
Castel di Tora RI 17 288 21063
Pescorocchiano RI 17 2075 23138
Ascrea RI 18 234 23372
Colle di Tora RI 18 372 23744
Rieti RI 18 47698 71442
Cagnano Amiterno AQ 18 1369 72811
Paganico Sabino RI 18 172 72983
Torricella in Sabina RI 19 1342 74325
Cantalice RI 19 2755 77080
Collegiove RI 19 213 77293
Borbona RI 19 617 77910
Posta RI 20 694 78604

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of L'Aquila (69753 inhabitants)
42 Km SE of Terni (111501 inhabitants)
48 Km NE of Guidonia Montecelio (88673 inhabitants)
48 Km NE of Tivoli (56533 inhabitants)
63 Km SW of Teramo (54892 inhabitants)
70 Km NE of Roma (2864731 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
77 Km NE of Velletri (53303 inhabitants)
79 Km E of Viterbo (67173 inhabitants)
88 Km NE of Pomezia (62966 inhabitants)
90 Km NE of Aprilia (73446 inhabitants)
91 Km W of Chieti (51815 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Fiumicino (78395 inhabitants)
95 Km W of Pescara (121014 inhabitants)
99 Km N of Latina (125985 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 2.3 2001-09-04
10:20:39
42.35 13.07 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 427149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-09-04 10:20:39 ± 0.212
Latitude 42.35 ± 0.01
Longitude 13.07 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 427149

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) 2380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00818
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 427149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:43:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SNTG.Z. 2001-09-04T10:21:10.72 10.0 undecidable manual SG 354 0.0082 0.14 0.5
--.SDI.Z. 2001-09-04T10:21:07.52 10.0 undecidable manual SG 138 0.0075 -0.86 0.3
--.SNTG.Z. 2001-09-04T10:20:56.30 10.0 undecidable manual PG 354 0.0082 -1.36 0.3
--.SDI.Z. 2001-09-04T10:20:56.37 10.0 undecidable manual PG 138 0.0075 0.25 1.5
--.ASS.Z. 2001-09-04T10:20:55.40 10.0 undecidable manual PG 337 0.007 0.16 1.6
--.PTQR.Z. 2001-09-04T10:20:53.44 10.0 undecidable manual SG 142 0.0036 -0.98 0.3
--.MNS.Z. 2001-09-04T10:20:49.83 10.0 undecidable manual SG 277 0.0025 -0.65 0.5
--.AQU.Z. 2001-09-04T10:20:49.85 10.0 undecidable manual SG 88 0.0022 0.56 0.4
--.NRCA.Z. 2001-09-04T10:20:49.21 10.0 undecidable manual PG 4 0.0044 -0.31 2.1
--.PTQR.Z. 2001-09-04T10:20:47.97 10.0 undecidable manual PG 142 0.0036 -0.09 2.1
--.MNS.Z. 2001-09-04T10:20:46.60 10.0 undecidable manual PG 277 0.0025 0.82 0.9
--.AQU.Z. 2001-09-04T10:20:45.33 10.0 undecidable manual PG 88 0.0022 0.23 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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