Earthquake with magnitude of Md 2.5 on date 01-06-1999 and time 02:56:10 (Italy) in region 4 km E Petrella Salto (RI)

A magnitude Md 2.5 earthquake occured in region: 4 km E Petrella Salto (RI), on

  • 01-06-1999 00:56:10 (UTC)
  • 01-06-1999 02:56:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.31, 13.11 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 4 1197 1197
Fiamignano RI 5 1413 2610
Concerviano RI 10 291 2901
Marcetelli RI 10 89 2990
Varco Sabino RI 11 187 3177
Castel Sant'Angelo RI 11 1308 4485
Borgo Velino RI 11 972 5457
Antrodoco RI 12 2588 8045
Pescorocchiano RI 12 2075 10120
Longone Sabino RI 12 597 10717
Scoppito AQ 14 3727 14444
Rocca Sinibalda RI 15 815 15259
Cittaducale RI 16 6828 22087
Ascrea RI 16 234 22321
Castel di Tora RI 16 288 22609
Collegiove RI 16 213 22822
Tornimparte AQ 16 3187 26009
Paganico Sabino RI 16 172 26181
Micigliano RI 16 127 26308
Borgorose RI 17 4591 30899
Colle di Tora RI 17 372 31271
Nespolo RI 17 246 31517
Belmonte in Sabina RI 18 636 32153
Cagnano Amiterno AQ 19 1369 33522
Lucoli AQ 19 1011 34533
Collalto Sabino RI 20 442 34975

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of L'Aquila (69753 inhabitants)
46 Km NE of Tivoli (56533 inhabitants)
47 Km NE of Guidonia Montecelio (88673 inhabitants)
47 Km SE of Terni (111501 inhabitants)
63 Km SW of Teramo (54892 inhabitants)
69 Km NE of Roma (2864731 inhabitants)
75 Km NE of Velletri (53303 inhabitants)
79 Km SE of Foligno (57155 inhabitants)
83 Km E of Viterbo (67173 inhabitants)
87 Km NE of Pomezia (62966 inhabitants)
87 Km W of Chieti (51815 inhabitants)
88 Km NE of Aprilia (73446 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
93 Km NE of Fiumicino (78395 inhabitants)
95 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 2.5 1999-06-01
00:56:10
42.31 13.11 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 367049
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-06-01 00:56:10 ± 0.154
Latitude 42.31 ± 0.01
Longitude 13.11 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 367049

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) 1445.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00737
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 367049
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:44:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1999-06-01T00:56:39.65 10.0 undecidable manual SG 336 0.0074 0.52 0.3
--.NRCA.Z. 1999-06-01T00:56:29.52 10.0 undecidable manual SG 0 0.0047 0 0.8
--.ASS.Z. 1999-06-01T00:56:26.76 10.0 undecidable manual PG 336 0.0074 -0.41 0.8
--.SDI.Z. 1999-06-01T00:56:26.72 10.0 undecidable manual PG 138 0.0071 0.02 1.7
--.PQ9.Z. 1999-06-01T00:56:24.99 10.0 undecidable manual SG 143 0.0032 0.64 0.3
--.MNS.Z. 1999-06-01T00:56:22.56 10.0 undecidable manual SG 283 0.0028 -0.55 0.2
--.NRCA.Z. 1999-06-01T00:56:21.58 10.0 undecidable manual PG 0 0.0047 -0.04 2.1
--.AQU.Z. 1999-06-01T00:56:19.90 10.0 undecidable manual SG 78 0.0019 0.01 0.9
--.PQ9.Z. 1999-06-01T00:56:18.26 10.0 undecidable manual PG 143 0.0032 -0.37 1.2
--.MNS.Z. 1999-06-01T00:56:18.56 10.0 undecidable manual PG 283 0.0028 0.64 0.7
--.AQU.Z. 1999-06-01T00:56:16.16 10.0 undecidable manual PG 78 0.0019 0.1 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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