Earthquake with magnitude of ML 0.4 on date 21-10-2010 and time 00:06:36 (UTC) in region 3 km NE Borbona (RI)

A magnitude ML 0.4 earthquake occured in region: 3 km NE Borbona (RI), on

  • 21-10-2010 00:06:36 (UTC)
  • 21-10-2010 02:06:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5340, 13.1620 at 11 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
Borbona RI 3 617 617
Posta RI 5 694 1311
Montereale AQ 7 2581 3892
Cittareale RI 9 482 4374
Cagnano Amiterno AQ 10 1369 5743
Capitignano AQ 12 665 6408
Micigliano RI 13 127 6535
Barete AQ 13 737 7272
Antrodoco RI 15 2588 9860
Amatrice RI 15 2657 12517
Pizzoli AQ 15 4326 16843
Borgo Velino RI 17 972 17815
Leonessa RI 17 2435 20250
Campotosto AQ 17 542 20792
Castel Sant'Angelo RI 19 1308 22100
Accumoli RI 19 667 22767
Scoppito AQ 20 3727 26494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
47 Km W of Teramo (54892 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
85 Km W of Chieti (51815 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
99 Km NE of Velletri (53303 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 1.0
ML 0.4
2010-10-21
00:06:36
42.534 13.162 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1131209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-10-21 00:06:36 ± 0.15
Latitude 42.5340 ± 0.0090
Longitude 13.1620 ± 0.0085
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1131209

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 664
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30127
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1131209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:57:21

Md:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1131209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:57:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHE. 2010-10-21T00:07:42.84 10.0 undecidable manual Pg 0 0 0
IV.SENI.EHZ. 2010-10-21T00:07:36.95 10.0 undecidable manual Pg 0 0 0
IV.TEOL.HHZ. 2010-10-21T00:07:25.46 10.0 undecidable manual Pg 0 0 0
IV.MCEL.HHZ. 2010-10-21T00:07:20.31 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHE. 2010-10-21T00:06:48.20 0.3 undecidable manual Sg 353 33.4443 -0.193 70
IV.SMA1.EHN. 2010-10-21T00:06:44.18 0.3 undecidable manual Sg 53 17.7711 -0.011 73
IV.NRCA.HHE. 2010-10-21T00:06:43.47 0.3 undecidable manual Pg 353 33.4443 -0.097 71
IV.RM32.EHE. 2010-10-21T00:06:42.40 0.3 undecidable manual Sg 69 11.3775 -0.067 75
IV.SMA1.EHN. 2010-10-21T00:06:41.33 0.1 undecidable manual Pg 53 17.7711 0.189 95
IV.RM32.EHE. 2010-10-21T00:06:40.32 0.1 undecidable manual Pg 69 11.3775 0.174 97
IV.RM29.EHZ. 2010-10-21T00:06:40.96 0.3 undecidable manual Sg 48 4.3956 -0.111 76
IV.LNSS.HHN. 2010-10-21T00:06:40.40 0.3 undecidable manual Pg 308 12.5763 0.085 74
IV.RM33.EHZ. 2010-10-21T00:06:40.85 0.1 undecidable manual Sg 123 5.0949 -0.315 95
IV.RM33.EHZ. 2010-10-21T00:06:39.49 0.1 undecidable manual Pg 123 5.0949 0.096 100
IV.RM29.EHZ. 2010-10-21T00:06:39.48 0.1 undecidable manual Pg 48 4.3956 0.14 98
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