Earthquake with magnitude of Md 2.4 on date 05-07-1987 and time 11:17:40 (UTC) in region 6 km NE Badia Tedalda (AR)

A magnitude Md 2.4 earthquake occured in region: 6 km NE Badia Tedalda (AR), on

  • 05-07-1987 11:17:40 (UTC)
  • 05-07-1987 13:17:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7520, 12.2340 at 5 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
Badia Tedalda AR 6 1087 1087
Sestino AR 7 1355 2442
Casteldelci RN 8 407 2849
Pennabilli RN 8 2869 5718
Carpegna PU 9 1674 7392
Borgo Pace PU 12 606 7998
Frontino PU 12 293 8291
Belforte all'Isauro PU 12 769 9060
Sant'Agata Feltria RN 13 2151 11211
Pietrarubbia PU 13 660 11871
Mercatello sul Metauro PU 14 1378 13249
Montecopiolo PU 14 1128 14377
Piandimeleto PU 15 2167 16544
Maiolo RN 15 848 17392
Novafeltria RN 17 7164 24556
Lunano PU 17 1527 26083
Sant'Angelo in Vado PU 17 4133 30216
Monte Cerignone PU 18 669 30885
Talamello RN 18 1104 31989
Macerata Feltria PU 18 1990 33979
Pieve Santo Stefano AR 18 3183 37162
San Leo RN 18 2972 40134
Verghereto FC 19 1907 42041
Sarsina FC 20 3446 45487

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Arezzo (99543 inhabitants)
43 Km S of Cesena (96758 inhabitants)
44 Km SW of Rimini (147750 inhabitants)
55 Km S of Forlì (117913 inhabitants)
57 Km W of Pesaro (94582 inhabitants)
64 Km W of Fano (60888 inhabitants)
66 Km SE of Faenza (58541 inhabitants)
73 Km N of Perugia (166134 inhabitants)
74 Km S of Ravenna (159116 inhabitants)
79 Km E of Firenze (382808 inhabitants)
79 Km SE of Imola (69797 inhabitants)
85 Km E of Scandicci (50609 inhabitants)
87 Km NE of Siena (53903 inhabitants)
92 Km E of Prato (191150 inhabitants)
96 Km NW of Foligno (57155 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 2.4 1987-07-05
11:17:40
43.752 12.234 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 50639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-07-05 11:17:40 ± 0.213
Latitude 43.7520 ± 0.0400
Longitude 12.2340 ± 0.0346
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 50639

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) 5248.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.01109
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 50639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:49:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CM8.Z. 1987-07-05T11:18:11.88 10.0 undecidable manual SG 129 0.8658 1.12 0.1
--.PS9.Z. 1987-07-05T11:18:03.90 10.0 undecidable manual PN 268 1.2321 -0.07 1.2
--.ARV.Z. 1987-07-05T11:18:02.10 10.0 undecidable manual SG 115 0.5661 0.59 0.3
--.CM8.Z. 1987-07-05T11:17:57.65 10.0 undecidable manual PG 129 0.8658 -0.18 1.4
--.PGD.Z. 1987-07-05T11:17:56.00 10.0 undecidable manual SG 288 0.3885 0.72 0.2
--.ASS.Z. 1987-07-05T11:17:55.14 10.0 undecidable manual PG 155 0.7437 -0.65 0.7
--.SS9.Z. 1987-07-05T11:17:52.49 10.0 undecidable manual SG 301 0.3108 -0.24 0.6
--.ARV.Z. 1987-07-05T11:17:52.60 10.0 undecidable manual PG 115 0.5661 -0.38 1.3
--.PGD.Z. 1987-07-05T11:17:49.44 10.0 undecidable manual PG 288 0.3885 0.55 0.9
--.SS9.Z. 1987-07-05T11:17:47.20 10.0 positive manual PG 301 0.3108 -0.22 3.2
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