Earthquake with magnitude of Md 2.3 on date 06-07-1987 and time 16:17:14 (UTC) in region 5 km W Sestino (AR)

A magnitude Md 2.3 earthquake occured in region: 5 km W Sestino (AR), on

  • 06-07-1987 16:17:14 (UTC)
  • 06-07-1987 18:17:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7280, 12.2450 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
Sestino AR 5 1355 1355
Badia Tedalda AR 5 1087 2442
Borgo Pace PU 9 606 3048
Carpegna PU 10 1674 4722
Casteldelci RN 10 407 5129
Pennabilli RN 10 2869 7998
Belforte all'Isauro PU 11 769 8767
Frontino PU 12 293 9060
Mercatello sul Metauro PU 12 1378 10438
Pietrarubbia PU 14 660 11098
Piandimeleto PU 14 2167 13265
Sant'Angelo in Vado PU 15 4133 17398
Sant'Agata Feltria RN 16 2151 19549
Montecopiolo PU 16 1128 20677
Lunano PU 16 1527 22204
Maiolo RN 17 848 23052
Pieve Santo Stefano AR 18 3183 26235
Macerata Feltria PU 18 1990 28225
Monte Cerignone PU 19 669 28894
Novafeltria RN 19 7164 36058
Sansepolcro AR 19 15884 51942
Talamello RN 20 1104 53046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Arezzo (99543 inhabitants)
45 Km SW of Rimini (147750 inhabitants)
46 Km S of Cesena (96758 inhabitants)
57 Km W of Pesaro (94582 inhabitants)
58 Km S of Forlì (117913 inhabitants)
64 Km W of Fano (60888 inhabitants)
69 Km SE of Faenza (58541 inhabitants)
70 Km N of Perugia (166134 inhabitants)
77 Km S of Ravenna (159116 inhabitants)
80 Km E of Firenze (382808 inhabitants)
82 Km SE of Imola (69797 inhabitants)
85 Km E of Scandicci (50609 inhabitants)
87 Km NE of Siena (53903 inhabitants)
94 Km NW of Foligno (57155 inhabitants)
94 Km E of Prato (191150 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 2.3
ML-VAX 1.6
1987-07-06
16:17:14
43.728 12.245 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 51069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-07-06 16:17:14 ± 0.321
Latitude 43.7280 ± 0.0239
Longitude 12.2450 ± 0.0233
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 51069

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) 3253.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00648
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 51069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:49:34

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 51069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1987-07-06T16:17:40.13 10.0 undecidable manual SG 155 0.7215 0.34 0.6
--.PGD.Z. 1987-07-06T16:17:30.39 10.0 undecidable manual SG 291 0.3996 0.96 0.4
--.ASS.Z. 1987-07-06T16:17:29.19 10.0 undecidable manual PG 155 0.7215 0.09 1.6
--.SS9.Z. 1987-07-06T16:17:26.46 10.0 undecidable manual SG 304 0.3441 -0.96 0.3
--.ARV.Z. 1987-07-06T16:17:25.73 10.0 undecidable manual PG 113 0.5439 -0.17 1.9
--.PGD.Z. 1987-07-06T16:17:24.45 10.0 undecidable manual PG 291 0.3996 1.33 0.4
--.CRE.Z. 1987-07-06T16:17:23.56 10.0 undecidable manual SG 242 0.2331 -0.52 0.6
--.SS9.Z. 1987-07-06T16:17:21.22 10.0 undecidable manual PG 304 0.3441 -0.74 1.2
--.CRE.Z. 1987-07-06T16:17:19.72 10.0 undecidable manual PG 242 0.2331 -0.31 1.9
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