Earthquake with magnitude of Md 2.4 on date 05-07-1987 and time 21:50:28 (Italy) in region 5 km NE Badia Tedalda (AR)

A magnitude Md 2.4 earthquake occured in region: 5 km NE Badia Tedalda (AR), on

  • 05-07-1987 19:50:28 (UTC)
  • 05-07-1987 21:50:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7390, 12.2360 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 5 1087 1087
Sestino AR 6 1355 2442
Casteldelci RN 9 407 2849
Pennabilli RN 9 2869 5718
Carpegna PU 9 1674 7392
Borgo Pace PU 10 606 7998
Belforte all'Isauro PU 12 769 8767
Frontino PU 12 293 9060
Mercatello sul Metauro PU 13 1378 10438
Pietrarubbia PU 14 660 11098
Sant'Agata Feltria RN 14 2151 13249
Piandimeleto PU 15 2167 15416
Montecopiolo PU 15 1128 16544
Maiolo RN 16 848 17392
Sant'Angelo in Vado PU 17 4133 21525
Lunano PU 17 1527 23052
Pieve Santo Stefano AR 17 3183 26235
Novafeltria RN 18 7164 33399
Macerata Feltria PU 18 1990 35389
Monte Cerignone PU 18 669 36058
Talamello RN 19 1104 37162
Verghereto FC 20 1907 39069
San Leo RN 20 2972 42041

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Arezzo (99543 inhabitants)
44 Km S of Cesena (96758 inhabitants)
45 Km SW of Rimini (147750 inhabitants)
56 Km S of Forlì (117913 inhabitants)
58 Km W of Pesaro (94582 inhabitants)
64 Km W of Fano (60888 inhabitants)
67 Km SE of Faenza (58541 inhabitants)
71 Km N of Perugia (166134 inhabitants)
76 Km S of Ravenna (159116 inhabitants)
79 Km E of Firenze (382808 inhabitants)
80 Km SE of Imola (69797 inhabitants)
85 Km E of Scandicci (50609 inhabitants)
87 Km NE of Siena (53903 inhabitants)
93 Km E of Prato (191150 inhabitants)
95 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
ML-VAX 1.8
1987-07-05
19:50:28
43.739 12.236 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 50799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-07-05 19:50:28 ± 0.13
Latitude 43.7390 ± 0.0188
Longitude 12.2360 ± 0.0185
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 50799

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) 2563.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.01109
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 50799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:49:20

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 50799
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
--.PS9.Z. 1987-07-05T19:50:52.29 10.0 undecidable manual PN 269 1.2321 0.24 0.9
--.ARV.Z. 1987-07-05T19:50:49.74 10.0 undecidable manual SG 114 0.555 0.47 0.2
--.PGD.Z. 1987-07-05T19:50:44.12 10.0 undecidable manual SG 290 0.3885 0.56 0.1
--.ASS.Z. 1987-07-05T19:50:43.52 10.0 undecidable manual PG 155 0.7326 -0.1 1.6
--.SS9.Z. 1987-07-05T19:50:41.11 10.0 undecidable manual SG 303 0.3219 0.01 0.8
--.ARV.Z. 1987-07-05T19:50:40.22 10.0 undecidable manual PG 114 0.555 -0.16 1.7
--.PGD.Z. 1987-07-05T19:50:36.70 10.0 undecidable manual PG 290 0.3885 -0.38 0.8
--.SS9.Z. 1987-07-05T19:50:35.58 10.0 undecidable manual PG 303 0.3219 -0.09 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