Earthquake with magnitude of Md 2.1 on date 04-04-1996 and time 22:53:18 (Italy) in region 6 km N Petrella Salto (RI)

A magnitude Md 2.1 earthquake occured in region: 6 km N Petrella Salto (RI), on

  • 04-04-1996 20:53:18 (UTC)
  • 04-04-1996 22:53:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3460, 13.0610 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
Concerviano RI 7 291 2796
Borgo Velino RI 7 972 3768
Antrodoco RI 8 2588 6356
Cittaducale RI 10 6828 13184
Fiamignano RI 10 1413 14597
Longone Sabino RI 11 597 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
Castel di Tora RI 16 288 17336
Scoppito AQ 16 3727 21063
Pescorocchiano RI 17 2075 23138
Colle di Tora RI 17 372 23510
Ascrea RI 17 234 23744
Rieti RI 18 47698 71442
Paganico Sabino RI 18 172 71614
Torricella in Sabina RI 18 1342 72956
Cagnano Amiterno AQ 19 1369 74325
Cantalice RI 19 2755 77080
Collegiove RI 19 213 77293
Borbona RI 20 617 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)
47 Km NE of Guidonia Montecelio (88673 inhabitants)
48 Km NE of Tivoli (56533 inhabitants)
63 Km SW of Teramo (54892 inhabitants)
69 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)
93 Km NE of Fiumicino (78395 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 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
Bulletin
Rev1000
Md 2.1 1996-04-04
20:53:18
42.346 13.061 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 243549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-04-04 20:53:18 ± 0.09
Latitude 42.3460 ± 0.0077
Longitude 13.0610 ± 0.0072
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 243549

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) 1046.6
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 9
Number of defining phases 9
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00761
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 243549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:50:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1996-04-04T20:53:45.66 10.0 undecidable manual SG 337 0.777 0.32 0.4
--.SDI.Z. 1996-04-04T20:53:35.50 10.0 undecidable manual PG 138 0.8436 0.22 1.2
--.ASS.Z. 1996-04-04T20:53:34.70 10.0 undecidable manual PG 337 0.777 0.08 1.7
--.PQ9.Z. 1996-04-04T20:53:33.22 10.0 undecidable manual SG 142 0.3996 -0.38 0.4
--.MNS.Z. 1996-04-04T20:53:29.51 10.0 undecidable manual SG 278 0.2775 -0.01 0.9
--.AQU.Z. 1996-04-04T20:53:28.62 10.0 undecidable manual SG 88 0.2553 0.1 0.9
--.PQ9.Z. 1996-04-04T20:53:27.56 10.0 undecidable manual PG 142 0.3996 0.34 1.1
--.MNS.Z. 1996-04-04T20:53:24.62 10.0 undecidable manual PG 278 0.2775 -0.25 1.6
--.AQU.Z. 1996-04-04T20:53:23.88 10.0 undecidable manual PG 88 0.2553 -0.4 0.8
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