Earthquake with magnitude of Md 2.3 on date 14-06-1987 and time 00:44:55 (UTC) in region 1 km SW Cittareale (RI)

A magnitude Md 2.3 earthquake occured in region: 1 km SW Cittareale (RI), on

  • 14-06-1987 00:44:55 (UTC)
  • 14-06-1987 02:44:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6070, 13.1520 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
Cittareale RI 2 482 482
Posta RI 10 694 1176
Borbona RI 11 617 1793
Amatrice RI 12 2657 4450
Montereale AQ 12 2581 7031
Accumoli RI 13 667 7698
Capitignano AQ 16 665 8363
Leonessa RI 16 2435 10798
Cascia PG 17 3217 14015
Monteleone di Spoleto PG 17 599 14614
Cagnano Amiterno AQ 17 1369 15983
Campotosto AQ 19 542 16525
Micigliano RI 19 127 16652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
88 Km W of Chieti (51815 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
89 Km W of Pescara (121014 inhabitants)
97 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 2.3 1987-06-14
00:44:55
42.607 13.152 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 48999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-06-14 00:44:55 ± 0.662
Latitude 42.6070 ± 0.0173
Longitude 13.1520 ± 0.0569
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 48999

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) 5035.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00364
Epicentral distance of station farthest from the epicenter (degree) 0.00809
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 48999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:47:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1987-06-14T00:45:26.50 10.0 undecidable manual SG 350 0.8991 -0.34 0.7
--.ASS.Z. 1987-06-14T00:45:17.00 10.0 undecidable manual SG 321 0.5772 0.43 0.5
--.ARV.Z. 1987-06-14T00:45:14.50 10.0 undecidable manual PG 350 0.8991 0.74 1
--.MNS.Z. 1987-06-14T00:45:11.50 10.0 undecidable manual SG 237 0.3996 0.46 0.6
--.ASS.Z. 1987-06-14T00:45:07.00 10.0 undecidable manual PG 321 0.5772 -0.83 0.9
--.MNS.Z. 1987-06-14T00:45:04.50 10.0 undecidable manual PG 237 0.3996 -0.14 2.3
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