Earthquake with magnitude of Md 2.0 on date 27-11-1987 and time 23:22:17 (Italy) in region 1 km NE Muccia (MC)

A magnitude Md 2.0 earthquake occured in region: 1 km NE Muccia (MC), on

  • 27-11-1987 22:22:17 (UTC)
  • 27-11-1987 23:22:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.09, 13.05 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
Muccia MC 1 915 915
Pievebovigliana MC 4 866 1781
Pieve Torina MC 5 1458 3239
Camerino MC 5 6974 10213
Fiordimonte MC 7 202 10415
Serravalle di Chienti MC 9 1070 11485
Fiastra MC 10 559 12044
Sefro MC 11 422 12466
Pioraco MC 11 1134 13600
Monte Cavallo MC 12 145 13745
Acquacanina MC 12 121 13866
Castelraimondo MC 13 4587 18453
Serrapetrona MC 15 966 19419
Fiuminata MC 15 1402 20821
Caldarola MC 15 1823 22644
Gagliole MC 17 620 23264
Cessapalombo MC 17 512 23776
Belforte del Chienti MC 17 1886 25662
Bolognola MC 18 142 25804
Ussita MC 18 444 26248
Camporotondo di Fiastrone MC 18 563 26811
Visso MC 18 1107 27918
San Severino Marche MC 18 12726 40644
Matelica MC 19 9981 50625
Esanatoglia MC 20 2034 52659

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
84 Km S of Fano (60888 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 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
Rev 1000 Md 2.0 1987-11-27
22:22:17
43.09 13.05 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 58949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-11-27 22:22:17 ± 0.153
Latitude 43.09 ± 0.01
Longitude 13.05 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 58949

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) 1512.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 232
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00372
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 58949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:56:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1987-11-27T22:22:32.93 10.0 undecidable manual SG 348 0.0037 0.13 0.3
--.ASS.Z. 1987-11-27T22:22:29.22 10.0 undecidable manual SG 264 0.0026 0.3 0.1
--.ARV.Z. 1987-11-27T22:22:26.12 10.0 undecidable manual PG 348 0.0037 -0.23 0.4
--.ASS.Z. 1987-11-27T22:22:24.40 10.0 undecidable manual PG 264 0.0026 -0.07 1.4
--.CM8.Z. 1987-11-27T22:22:23.47 10.0 undecidable manual SG 32 0.0011 0.07 0.8
--.CM8.Z. 1987-11-27T22:22:20.96 10.0 undecidable manual PG 32 0.0011 0.04 3.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download