Earthquake with magnitude of Md 2.5 on date 01-06-1987 and time 19:55:40 (Italy) in region 1 km NW San Ginesio (MC)

A magnitude Md 2.5 earthquake occured in region: 1 km NW San Ginesio (MC), on

  • 01-06-1987 17:55:40 (UTC)
  • 01-06-1987 19:55:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1180, 13.3130 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
San Ginesio MC 1 3498 3498
Camporotondo di Fiastrone MC 4 563 4061
Cessapalombo MC 4 512 4573
Ripe San Ginesio MC 5 852 5425
Gualdo MC 6 815 6240
Colmurano MC 6 1263 7503
Sant'Angelo in Pontano MC 7 1436 8939
Caldarola MC 7 1823 10762
Belforte del Chienti MC 8 1886 12648
Sarnano MC 9 3264 15912
Loro Piceno MC 10 2401 18313
Urbisaglia MC 10 2628 20941
Tolentino MC 10 20069 41010
Penna San Giovanni MC 11 1108 42118
Serrapetrona MC 12 966 43084
Montappone FM 13 1682 44766
Falerone FM 13 3337 48103
Massa Fermana FM 14 963 49066
Monte Vidon Corrado FM 14 731 49797
Monte San Martino MC 14 765 50562
Acquacanina MC 15 121 50683
Servigliano FM 15 2336 53019
Bolognola MC 15 142 53161
Fiastra MC 16 559 53720
Amandola FM 16 3629 57349
Mogliano MC 16 4696 62045
San Severino Marche MC 17 12726 74771
Smerillo FM 17 365 75136
Petriolo MC 17 1998 77134
Pollenza MC 17 6618 83752
Montegiorgio FM 18 6851 90603
Santa Vittoria in Matenano FM 19 1330 91933
Belmonte Piceno FM 19 646 92579
Montefalcone Appennino FM 19 424 93003
Monteleone di Fermo FM 19 395 93398
Montefortino FM 20 1178 94576
Pievebovigliana MC 20 866 95442
Comunanza AP 20 3166 98608
Camerino MC 20 6974 105582

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km E of Foligno (57155 inhabitants)
58 Km S of Ancona (100861 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
75 Km E of Perugia (166134 inhabitants)
82 Km NE of Terni (111501 inhabitants)
84 Km S of Fano (60888 inhabitants)
85 Km N of L'Aquila (69753 inhabitants)
94 Km SE of Pesaro (94582 inhabitants)
96 Km NW of Montesilvano (53738 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 2.5 1987-06-01
17:55:40
43.118 13.313 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 48579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-06-01 17:55:40 ± 0.239
Latitude 43.1180 ± 0.0106
Longitude 13.3130 ± 0.0277
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 48579

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) 2543.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.01303
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 48579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:47:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1987-06-01T17:56:11.50 10.0 undecidable manual SG 212 0.8658 0.68 0
--.SD1.Z. 1987-06-01T17:56:07.00 10.0 undecidable manual PN 164 1.443 0.08 1.3
--.ARV.Z. 1987-06-01T17:55:58.00 10.0 undecidable manual SG 324 0.4551 0.07 0.7
--.MNS.Z. 1987-06-01T17:55:57.50 10.0 undecidable manual PG 212 0.8658 -0.34 0.9
--.ARV.Z. 1987-06-01T17:55:50.50 10.0 undecidable manual PG 324 0.4551 0.1 1.8
--.ASS.Z. 1987-06-01T17:55:50.50 10.0 undecidable manual PG 263 0.4773 -0.26 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download