Earthquake with magnitude of Md 2.2 on date 02-05-1987 and time 11:07:29 (Italy) in region 5 km S Acquacanina (MC)

A magnitude Md 2.2 earthquake occured in region: 5 km S Acquacanina (MC), on

  • 02-05-1987 09:07:29 (UTC)
  • 02-05-1987 11:07:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9910, 13.1590 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
Acquacanina MC 5 121 121
Fiastra MC 5 559 680
Ussita MC 5 444 1124
Bolognola MC 6 142 1266
Fiordimonte MC 8 202 1468
Visso MC 9 1107 2575
Pievebovigliana MC 10 866 3441
Pieve Torina MC 11 1458 4899
Castelsantangelo sul Nera MC 11 281 5180
Sarnano MC 13 3264 8444
Monte Cavallo MC 13 145 8589
Muccia MC 14 915 9504
Cessapalombo MC 16 512 10016
Preci PG 16 724 10740
Montefortino FM 16 1178 11918
Amandola FM 16 3629 15547
Montemonaco AP 17 604 16151
Gualdo MC 17 815 16966
Caldarola MC 17 1823 18789
Camerino MC 18 6974 25763
Camporotondo di Fiastrone MC 18 563 26326
San Ginesio MC 18 3498 29824
Serravalle di Chienti MC 19 1070 30894

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
63 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 inhabitants)
97 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 2.2 1987-05-02
09:07:29
42.991 13.159 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 46099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-02 09:07:29 ± 0.633
Latitude 42.9910 ± 0.0253
Longitude 13.1590 ± 0.0555
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46099

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) 5322.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 227
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) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.00971
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 46099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:45:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 1987-05-02T09:07:52.00 10.0 undecidable manual PN 305 1.0767 0.84 0.8
--.ARV.Z. 1987-05-02T09:07:48.00 10.0 undecidable manual SG 342 0.5328 -1.4 0.2
--.ASS.Z. 1987-05-02T09:07:45.00 10.0 undecidable manual SG 280 0.3663 0.88 0.4
--.MNS.Z. 1987-05-02T09:07:44.00 10.0 undecidable manual PG 209 0.6882 -0.14 1.9
--.ARV.Z. 1987-05-02T09:07:41.50 10.0 undecidable manual PG 342 0.5328 0.51 1.7
--.ASS.Z. 1987-05-02T09:07:37.00 10.0 undecidable manual PG 280 0.3663 -0.93 1
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