Earthquake with magnitude of Md 2.0 on date 05-07-1987 and time 10:08:36 (UTC) in region 2 km N Montereale (AQ)

A magnitude Md 2.0 earthquake occured in region: 2 km N Montereale (AQ), on

  • 05-07-1987 10:08:36 (UTC)
  • 05-07-1987 12:08:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5470, 13.2450 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
Montereale AQ 2 2581 2581
Capitignano AQ 6 665 3246
Cagnano Amiterno AQ 10 1369 4615
Borbona RI 10 617 5232
Amatrice RI 10 2657 7889
Campotosto AQ 10 542 8431
Cittareale RI 11 482 8913
Barete AQ 11 737 9650
Posta RI 12 694 10344
Pizzoli AQ 13 4326 14670
Accumoli RI 17 667 15337
Micigliano RI 19 127 15464
Crognaleto TE 19 1297 16761
Scoppito AQ 20 3727 20488
Antrodoco RI 20 2588 23076

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
79 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
96 Km NE of Roma (2864731 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 2.0 1987-07-05
10:08:36
42.547 13.245 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 50599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-07-05 10:08:36 ± 0.077
Latitude 42.5470 ± 0.0064
Longitude 13.2450 ± 0.0058
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 50599

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) 850.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.00599
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 50599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:49:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1987-07-05T10:08:59.98 10.0 undecidable manual SG 320 0.666 -0.12 0.3
--.MNS.Z. 1987-07-05T10:08:52.73 10.0 undecidable manual SG 249 0.444 -0.07 0.6
--.ASS.Z. 1987-07-05T10:08:50.27 10.0 undecidable manual PG 320 0.666 0.12 0.8
--.ALP.Z. 1987-07-05T10:08:48.88 10.0 undecidable manual SG 45 0.3219 -0.25 0.1
--.MNS.Z. 1987-07-05T10:08:45.87 10.0 undecidable manual PG 249 0.444 -0.06 1.5
--.ALP.Z. 1987-07-05T10:08:43.89 10.0 positive manual PG 45 0.3219 0.08 2.7
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